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Document And Entity Information
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3 Months Ended | |
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Mar. 31, 2013
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Apr. 30, 2013
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| Document and Entity Information [Abstract] | ||
| Document Type | 10-Q | |
| Amendment Flag | false | |
| Document Period End Date | Mar. 31, 2013 | |
| Document Fiscal Period Focus | Q1 | |
| Document Fiscal Year Focus | 2013 | |
| Trading Symbol | RPXC | |
| Entity Registrant Name | RPX Corporation | |
| Entity Central Index Key | 0001509432 | |
| Current Fiscal Year End Date | --12-31 | |
| Entity Filer Category | Non-accelerated Filer | |
| Entity Common Stock, Shares Outstanding | 51,573,567 |
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- Definition
If the value is true, then the document is an amendment to previously-filed/accepted document. No definition available.
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- Definition
End date of current fiscal year in the format --MM-DD. No definition available.
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- Definition
This is focus fiscal period of the document report. For a first quarter 2006 quarterly report, which may also provide financial information from prior periods, the first fiscal quarter should be given as the fiscal period focus. Values: FY, Q1, Q2, Q3, Q4, H1, H2, M9, T1, T2, T3, M8, CY. No definition available.
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- Definition
This is focus fiscal year of the document report in CCYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006. No definition available.
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- Definition
The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD. No definition available.
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- Definition
The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word "Other". No definition available.
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- Definition
A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument. No definition available.
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- Definition
Indicate whether the registrant is one of the following: (1) Large Accelerated Filer, (2) Accelerated Filer, (3) Non-accelerated Filer, (4) Smaller Reporting Company (Non-accelerated) or (5) Smaller Reporting Accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure. No definition available.
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- Definition
The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Trading symbol of an instrument as listed on an exchange. No definition available.
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- Details
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- Details
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- Details
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| X | ||||||||||
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- Definition
Represents the noncurrent portion of deferred tax liabilities, which result from applying the applicable tax rate to net taxable temporary differences pertaining to each jurisdictionto which the entity is obligated to pay income tax, as well as the noncurrent portion of the amount recognized for unceratin tax position as of the balance sheet date. No definition available.
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- Definition
Carrying amount of finite-lived patent assets after accumulated amortization as of the balance sheet date of the costs pertaining to the exclusive legal rights granted to the owner to exploit an invention or a process for a period of time specified by law. Such costs may have been expended to directly apply and receive patent rights, or to acquire such rights. No definition available.
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- Definition
Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amounts due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer) for goods or services (including trade receivables) that have been delivered or sold in the normal course of business. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The carrying amount of consideration received or receivable as of the balance sheet date on potential earnings that were not recognized as revenue in conformity with GAAP, and which are expected to be recognized as such within one year or the normal operating cycle, if longer, including sales, license fees, and royalties, but excluding interest income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The noncurrent portion of deferred revenue amount as of balance sheet date. Deferred revenue is a liability related to a revenue producing activity for which revenue has not yet been recognized, and is not expected to be recognized in the next twelve months. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards expected to be realized or consumed within one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Total of all Liabilities and Stockholders' Equity items (or Partners' Capital, as applicable), including the portion of equity attributable to noncontrolling interests, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Aggregate carrying amount, as of the balance sheet date, of noncurrent assets not separately disclosed in the balance sheet. Noncurrent assets are expected to be realized or consumed after one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Aggregate carrying amount of current liabilities (due within one year or within the normal operating cycle if longer) not separately disclosed in the balance sheet. Includes costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered and of liabilities not separately disclosed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Aggregate carrying amount, as of the balance sheet date, of noncurrent obligations not separately disclosed in the balance sheet. Noncurrent liabilities are expected to be paid after one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Carrying value as of the balance sheet date of the portion of long-term debt not otherwise specified in the taxonomy that is scheduled to be repaid within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Carrying amounts due as of the balance sheet date from parties or arising from transactions not otherwise specified in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The total of the amounts paid in advance for capitalized costs that will be expensed with the passage of time or the occurrence of a triggering event, and will be charged against earnings within one year or the normal operating cycle, if longer, and the aggregate carrying amount of current assets, as of the balance sheet date, not separately presented elsewhere in the balance sheet. Current assets are expected to be realized or consumed within one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The cumulative amount of the reporting entity's undistributed earnings or deficit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Investments which are intended to be sold in the short term (usually less than one year or the normal operating cycle, whichever is longer) including trading securities, available-for-sale securities, held-to-maturity securities, and other short-term investments not otherwise listed in the existing taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Condensed Consolidated Statements of Operations (Unaudited) (USD $)
In Thousands, except Per Share data, unless otherwise specified |
3 Months Ended | |
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Mar. 31, 2013
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Mar. 31, 2012
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| Revenue | $ 61,194 | $ 43,849 |
| Cost of revenue | 23,670 | 18,017 |
| Selling, general and administrative expenses | 14,473 | 13,223 |
| Gain on sale of patent assets, net | 0 | (177) |
| Operating income | 23,051 | 12,786 |
| Other income (expense), net | 51 | (20) |
| Income before provision for income taxes | 23,102 | 12,766 |
| Provision for income taxes | 8,407 | 4,685 |
| Net income | 14,695 | 8,081 |
| Net income available to common stockholders: | ||
| Basic | 14,678 | 7,840 |
| Diluted | $ 14,678 | $ 7,853 |
| Net income per common share: | ||
| Basic | $ 0.29 | $ 0.16 |
| Diluted | $ 0.28 | $ 0.15 |
| Weighted-average shares used in computing net income per common share: | ||
| Basic | 51,201 | 48,308 |
| Diluted | 52,653 | 51,226 |
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- Details
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- Details
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- Details
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- Definition
The aggregate cost of goods produced and sold and services rendered during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The gains (losses) included in results of operations resulting from the sale or disposal of other assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of interest income and other income recognized during the period. Included in this element is interest derived from investments in debt securities, cash and cash equivalents, and other investments which reflect the time value of money or transactions in which the payments are for the use or forbearance of money and other income from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business). No definition available.
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- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Net Income or Loss Available to Common Stockholders plus adjustments resulting from the assumption that dilutive convertible securities were converted, options or warrants were exercised, or that other shares were issued upon the satisfaction of certain conditions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The net result for the period of deducting operating expenses from operating revenues. No definition available.
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- Definition
Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Condensed Consolidated Statements of Comprehensive Income (Unaudited) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | |
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Mar. 31, 2013
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Mar. 31, 2012
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| Net income | $ 14,695 | $ 8,081 |
| Unrealized gains on available-for-sale securities: | ||
| Unrealized holding gains arising during the period | 99 | 14 |
| Less: reclassification adjustment for (gains) losses included in net income | 1 | (1) |
| Net unrealized gains on available-for-sale securities, net of tax | 100 | 13 |
| Comprehensive income | $ 14,795 | $ 8,094 |
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- Details
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- Definition
The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Net of tax amount of the appreciation (loss) in value of unsold available-for-sale securities attributable to the parent entity. Excludes amounts related to other than temporary impairment (OTTI) losses. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Net of tax amount of the income statement impact of the reclassification adjustment for unrealized gain (loss) realized upon the sale of available-for-sale securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Net of tax amount of unrealized holding gain (loss) before reclassification adjustments and transfers on available-for-sale securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Change in other assets purchased and accrued but not paid No definition available.
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- Definition
Change in patent assets purchased and accrued but not paid. No definition available.
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- Details
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- Definition
Imputed interest on deferred payment obligations. No definition available.
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- Details
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- Definition
The sum of the periodic adjustments of the differences between securities' face values and purchase prices that are charged against earnings. This is called accretion if the security was purchased at a discount and amortization if it was purchased at premium. As a noncash item, this element is an adjustment to net income when calculating cash provided by or used in operations using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The component of income tax expense for the period representing the increase (decrease) in the entity's deferred tax assets and liabilities pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of excess tax benefit (tax deficiency) that arises when compensation cost from non-qualified share-based compensation recognized on the entity's tax return exceeds (is less than) compensation cost from equity-based compensation recognized in financial statements. Excess tax benefit (tax deficiency) increases (decreases) net cash provided by financing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of excess tax benefit (tax deficiency) that arises when compensation cost from non-qualified equity-based compensation recognized on the entity's tax return exceeds (is less than) compensation cost from equity-based compensation recognized in financial statements. Excess tax benefit (tax deficiency) reduces (increases) net cash provided by operating activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The gains (losses) included in results of operations resulting from the sale or disposal of other assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The increase (decrease) during the reporting period in the aggregate amount of accrued expenses and other operating obligations not separately disclosed in the statement of cash flows. No definition available.
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| X | ||||||||||
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- Definition
The increase (decrease) during the reporting period, excluding the portion taken into income, in the liability reflecting revenue yet to be earned for which cash or other forms of consideration was received or recorded as a receivable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The increase (decrease) during the reporting period in other amounts due to the reporting entity, which are not otherwise defined in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The increase (decrease) during the reporting period in the value of prepaid expenses and other assets not separately disclosed in the statement of cash flows, for example, deferred expenses, intangible assets, or income taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The net cash inflow or outflow for the increase (decrease) associated with funds that are not available for withdrawal or use (such as funds held in escrow) and are associated with underlying transactions that are classified as investing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The net cash inflow or outflow from financing activity for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The net cash inflow or outflow from investing activity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities generally involve producing and delivering goods and providing services. Operating activity cash flows include transactions, adjustments, and changes in value that are not defined as investing or financing activities. While for technical reasons this element has no balance attribute, the default assumption is a debit balance consistent with its label. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Other income (expense) included in net income that results in no cash inflows or outflows in the period. Includes noncash adjustments to reconcile net income (loss) to cash provided by (used in) operating activities that are not separately disclosed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cash outflow to acquire debt and equity securities not classified as either held-to-maturity securities or trading securities which would be classified as available-for-sale securities and reported at fair value, with unrealized gains and losses excluded from earnings and reported in a separate component of shareholders' equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cash outflow to acquire asset without physical form usually arising from contractual or other legal rights, excluding goodwill. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cash outflow for acquisition of or capital improvements on other tangible or intangible assets not otherwise defined in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The total cash inflow associated with the amount received from holders to acquire the entity's shares under incentive and share awards, including stock option exercises. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cash inflow associated with the sale or maturity (principal being due) of securities not classified as either held-to-maturity securities or trading securities which are classified as available-for-sale securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cash inflow from disposal of asset without physical form usually arising from contractual or other legal rights, excluding goodwill. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cash outflow for the payment of other borrowing not otherwise defined in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Nature of Business
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3 Months Ended |
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Mar. 31, 2013
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| Nature of Business | |
| Nature Of Business [Text Block] | Nature of Business RPX Corporation (also referred to herein as “RPX” or the “Company”) helps companies reduce patent-related risk and expense by providing a subscription-based patent risk management solution that facilitates more efficient exchanges of value between owners and users of patents compared to transactions driven by actual or threatened litigation. The core of the Company’s solution is defensive patent aggregation, in which it acquires patents or licenses to patents that are being or may be asserted against the Company’s current or prospective clients. The Company may occasionally enter into agreements to acquire covenants not to sue in order to further mitigate its clients’ litigation risk. The acquired patents, licenses to patents and agreements for covenants not to sue are collectively referred to as “patent assets.” The Company’s clients pay an annual subscription fee and in return, receive a license from the Company to substantially all of its patent assets and access to its proprietary patent market intelligence and data. In addition to the Company’s core solution, during the year ended December 31, 2012, the Company began underwriting patent infringement liability insurance policies to insure against certain costs of litigation from non-practicing entities (“NPEs”). The effect of the insurance policies that have been issued was not material to the Company’s results of operations or financial condition for the three months ended March 31, 2013. |
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- Details
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| X | ||||||||||
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- Definition
The entire disclosure for the nature of an entity's business, the major products or services it sells or provides and its principal markets, including the locations of those markets. If the entity operates in more than one business, the disclosure also indicates the relative importance of its operations in each business and the basis for the determination (for example, assets, revenues, or earnings). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Basis of Presentation and Significant Accounting Policies
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3 Months Ended |
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Mar. 31, 2013
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| Basis of Presentation and Significant Accounting Policies | |
| Basis of Presentation And Significant Accounting Policies [Text Block] | Basis of Presentation and Significant Accounting Policies Basis of Presentation The accompanying unaudited condensed consolidated financial statements of the Company have been prepared in accordance with accounting principles generally accepted in the United States of America and with the instructions for Form 10-Q and Regulation S-X for interim financial statements. Accordingly, they do not include all of the information and notes required for complete financial statements. In the opinion of management, all adjustments, consisting of normal recurring items, have been included in the accompanying financial statements state fairly the results of the interim periods. The unaudited condensed consolidated financial statements should be read in conjunction with the audited financial statements and accompanying notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2012. Operating results for the three months ended March 31, 2013 are not necessarily indicative of the results that may be expected for any subsequent interim period or for the year ending December 31, 2013. Recently Adopted Accounting Standards In February 2013, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2013-02, Reporting of Amounts of Reclassified Out of Accumulated Other Comprehensive Income (“ASU 2013-02”), which amends Comprehensive Income (Topic 220) in the Accounting Standards Codification (“ASC”). These amendments require an entity to provide information about the amounts reclassified out of accumulated other comprehensive income by component. In addition, an entity is required to present significant amounts reclassified out of accumulated other comprehensive income by the respective line items of net income. The amendments in ASU 2013-02 are effective for the Company's interim and annual fiscal periods beginning January 1, 2013. The adoption of ASU 2013-02 did not have a material impact on the Company’s financial position or results of operations. In October 2012, the FASB issued ASU 2012-04, Technical Corrections and Improvements (“ASU 2012-04”), which amends a wide range of topics in the ASC. These amendments include technical corrections and improvements to the ASC and conforming amendments related to fair value measurements. The amendments in ASU 2012-04 are effective for the Company's interim and annual fiscal periods beginning January 1, 2013. The adoption of ASU 2012-04 did not have a material impact on the Company’s financial position or results of operations. In July 2012, the FASB issued ASU 2012-02, Intangibles - Goodwill and Other (Topic 350): Testing Indefinite-Lived Intangible Assets for Impairment (“ASU 2012-02”), which amends ASU 2011-08, Intangibles - Goodwill and Other (Topic 350): Testing Indefinite-Lived Intangible Assets for Impairment and permits an entity to first assess qualitative factors to determine whether it is more likely than not that an indefinite-lived intangible asset is impaired as a basis for determining whether it is necessary to perform the quantitative impairment test in accordance with Subtopic 350-30, Intangibles - Goodwill and Other - General Intangibles Other than Goodwill. The amendments in ASU 2012-02 are effective for the Company's interim and annual fiscal periods beginning January 1, 2013. The adoption of ASU 2012-02 did not have a material impact on the Company’s financial position or results of operations. |
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- Details
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| X | ||||||||||
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- Definition
The entire disclosure for all significant accounting policies of the reporting entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Net Income Available to Common Stockholders
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Mar. 31, 2013
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| Net Income Available to Common Stockholders | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net Income Available to Common Stockholders [Text Block] | Net Income Available to Common Stockholders Basic and diluted net income per share available to common stockholders are presented in conformity with the two-class method required for participating securities. The holders of restricted common stock are entitled to receive non-forfeitable dividends if declared. Under the two-class method, basic net income per share available to common stockholders is computed by dividing the net income available to common stockholders by the weighted-average number of shares of common stock outstanding during the period. Net income available to common stockholders is determined by allocating undistributed earnings between common and restricted common stockholders. Diluted net income per share available to common stockholders is computed by using the weighted-average number of shares of common stock outstanding, including potential dilutive shares of common stock, assuming the dilutive effect of outstanding stock options and restricted stock units using the treasury stock method. The following table presents the calculation of basic and diluted net income per share available to common stockholders (in thousands, except per share data):
For the three months ended March 31, 2013 and 2012, the following securities were not included in the calculation of diluted shares outstanding, as the effect would have been anti-dilutive (in thousands):
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- Details
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| X | ||||||||||
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- Definition
The entire disclosure for earnings per share. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Fair Value Measurements Fair Value Measurements
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3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Mar. 31, 2013
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| Fair Value Measurements [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fair Value Measurements [Text Block] | Fair Value Measurements The following tables present the financial assets measured at fair value on a recurring basis as of March 31, 2013 and December 31, 2012 (in thousands):
As of March 31, 2013 and December 31, 2012, the Company did not use level 3 inputs to measure financial assets or liabilities at fair value. |
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- Details
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| X | ||||||||||
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- Definition
The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Short-term Investments
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3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Mar. 31, 2013
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| Short-term Investment [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Short-term Investments [Text Block] | Short-term Investments The following table summarizes the Company’s investments in available-for-sale securities as of March 31, 2013 and December 31, 2012 (in thousands):
Available-for-sale securities are reported at fair value, with unrealized gains and losses, net of tax, included as a separate component of stockholders’ equity within accumulated other comprehensive income (loss). Realized gains and losses on available-for-sale securities are included in other income (expense), net in the Company’s condensed consolidated statements of operations. The weighted-average remaining maturity of the Company’s investment portfolio was less than one year as of March 31, 2013 and December 31, 2012. As of March 31, 2013, no individual securities incurred continuous unrealized losses for greater than 12 months. |
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- Details
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| X | ||||||||||
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- Definition
The entire disclosure for investments in certain debt and equity securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Patent Assets, Net
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3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Mar. 31, 2013
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| Patent Assets [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Patent Assets, Net [Text Block] | Patent Assets, Net Patent assets, net consisted of the following (in thousands):
The Company’s acquired patent assets relate to technologies used or supplied by companies in a variety of market sectors, including consumer electronics, e-commerce, financial services, media distribution, mobile communications, networking, semiconductors, and software. The Company amortizes each acquired portfolio of patent assets on a straight-line basis over its estimated economic useful life. As of March 31, 2013, the estimated economic useful lives of the Company’s patent assets generally ranged from 24 to 60 months. As of March 31, 2013, the weighted-average estimated economic useful life at the time of acquisition, excluding fully amortized patent assets, was 46 months. The following table summarizes the expected future annual amortization expense of patent assets as of March 31, 2013 (in thousands):
Amortization expense was $22.6 million and $17.7 million for the three months ended March 31, 2013 and 2012, respectively. |
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| X | ||||||||||
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- Definition
Patent assets. No definition available.
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Property and Equipment, Net
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3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Mar. 31, 2013
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| Property and Equipment, Net | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Property and Equipment, Net [Text Block] | Property and Equipment, Net Property and equipment, net, consisted of the following (in thousands):
Depreciation and amortization expense was $0.4 million and $0.2 million for the three months ended March 31, 2013 and 2012, respectively. Stock-based compensation capitalized as part of the cost of internal-use software was $0.1 million for both the three months ended March 31, 2013 and 2012. |
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| X | ||||||||||
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- Definition
The entire disclosure for long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. This disclosure may include property plant and equipment accounting policies and methodology, a schedule of property, plant and equipment gross, additions, deletions, transfers and other changes, depreciation, depletion and amortization expense, net, accumulated depreciation, depletion and amortization expense and useful lives, income statement disclosures, assets held for sale and public utility disclosures. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Intangible Assets, Net
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Mar. 31, 2013
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| Intangible Assets, Net [Text Block] | Intangible Assets, Net Intangible assets, net, as of March 31, 2013 and December 31, 2012 consisted of the following (in thousands):
The estimated future amortization expenses for intangible assets are summarized below (in thousands):
Amortization expense was $0.4 million and $0.3 million for the three months ended March 31, 2013 and 2012, respectively. |
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The entire disclosure for all or part of the information related to intangible assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Accrued and Other Current Liabilities
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Mar. 31, 2013
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| Accrued And Other Current Liabilities [Text Block] | Accrued and Other Current Liabilities Accrued and other current liabilities consisted of the following (in thousands):
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The entire disclosure for accounts payable, accrued expenses, and other liabilities that are classified as current at the end of the reporting period. No definition available.
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Commitments and Contingencies
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Mar. 31, 2013
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| Commitments And Contingencies [Text Block] |
Operating Lease Commitments The Company generally does not enter into long-term minimum purchase commitments. Its principal commitments consist of obligations under operating leases for office space. There were no substantial changes to its contractual obligations or commitments during the three months ended March 31, 2013 as presented under the heading “Commitments and Contingencies” in Note 14 of the Notes to Consolidated Financial Statements in Part II, Item 8. “Consolidated Financial Statements and Supplementary Data” included in the Annual Report on Form 10-K for its fiscal year ended December 31, 2012. Rent expense related to non-cancelable operating leases was $0.6 million for both the three months ended March 31, 2013 and 2012. Litigation From time to time, the Company may be a party to various litigation claims in the normal course of business. Legal fees and other costs associated with such actions are expensed as incurred. The Company assesses, in conjunction with its legal counsel, the need to record a liability for litigation or legal contingencies. A liability is recorded when and if it is determined that such a liability for litigation or contingencies is both probable and reasonably estimable. No liability for litigation or legal contingencies was recorded as of March 31, 2013 or December 31, 2012. In February 2013, Volkswagen Group of America, Inc. (“Volkswagen”) filed a third party complaint (the “Complaint”) against the Company as part of an existing patent infringement lawsuit in the U.S. District Court for the Eastern District of Texas that was originally filed by Norman IP Holdings, LLC (“Norman”) and in which Volkswagen is a defendant. The Complaint relates to a patent license and acquisition transaction that the Company entered into with Norman and Saxon in January 2010. The claims allege that the Company, together with Norman and Saxon Innovations, LLC (“Saxon”), violated federal antitrust law and Texas antitrust law. Volkswagen seeks declaratory relief, unspecified monetary damages, and injunctive relief. Because the case is at a very early stage, the Company is not currently able to determine whether there is a reasonable possibility that a loss has been incurred nor can it estimate the range of the potential loss that may result from this litigation. In March 2012, Cascades Computer Innovations LLC filed a lawsuit in U.S. District Court for the Northern District of California (the “Court”) against the Company and five of its clients (collectively the “Defendants”). The lawsuit alleges that the Defendants violated federal antitrust law, California antitrust law and California unfair competition law. The lawsuit claims that after the Company terminated its negotiations with the plaintiff to license certain patents held by the plaintiff, the Defendants violated the law by jointly refusing to negotiate or accept licenses under the plaintiff’s patents. The plaintiff seeks unspecified monetary damages and injunctive relief. In January 2013, the Court dismissed the complaint against the Defendants and granted the plaintiff leave to amend its complaint. In February 2013, the plaintiff filed an amended lawsuit alleging that the Defendants violated federal antitrust law, California antitrust law and California unfair competition law. The Company is not currently able to determine whether there is a reasonable possibility that a loss has been incurred, nor can it estimate the potential loss or range of the potential loss that may result from this litigation. Guarantees and Indemnifications The Company has, in connection with the sale of patent assets, agreed to indemnify and hold harmless the buyer of such patent assets for losses resulting from breaches of representations and warranties made by the Company. The terms of these indemnification agreements are generally perpetual. The maximum amount of potential future indemnification is unlimited. To date, the Company has not paid any amount to settle claims or defend lawsuits. The Company is unable to reasonably estimate the maximum amount that could be payable under these arrangements since these obligations are not capped but are conditional to the unique facts and circumstances involved. Accordingly, the Company had no liabilities recorded for these agreements as of March 31, 2013 or December 31, 2012. The Company has no reason to believe that there is any material liability related to such indemnification provisions. The Company does not indemnify its clients for patent infringement. In accordance with its amended and restated bylaws, the Company also indemnifies certain officers and employees for losses incurred in connection with actions, suits or proceedings threatened or brought against such officer or employee arising from his or her service to the Company as an officer or employee, subject to certain limitations. The term of the indemnification period is indefinite. The maximum amount of potential future indemnification is unspecified. The Company has no reason to believe that there is any material liability for actions, events or occurrences that have occurred to date. |
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The entire disclosure for commitments and contingencies. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Stockholders' Equity
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Mar. 31, 2013
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| Stockholders' Equity [Text Block] | Stockholders’ Equity Equity Plans A summary of the Company’s activity under its equity award plans and related information is as follows (in thousands, except per share data):
The total intrinsic value for options exercised during the three months ended March 31, 2013 and 2012 was $4.0 million and $14.3 million, respectively. Restricted Stock Units The summary of restricted stock unit activity is as follows:
Stock-Based Compensation Related to Employees and Non-Employee Directors Stock-based compensation expense for employees and non-employee directors is based on the fair value of the award on the date of grant and is recognized on a straight-line basis over the requisite service period of the award. The Company estimates the fair value of stock options using the Black-Scholes option pricing model. Option valuation models, including the Black-Scholes option pricing model, require the input of various assumptions such as expected term, expected volatility and risk-free interest rates. Changes in the assumptions can materially affect the fair value and ultimately how much stock-based compensation expense is recognized. These inputs are subjective and generally require significant analysis and judgment to develop. For all stock options granted to date, the Company calculated the expected term using the SEC simplified method. The Company has limited information on its past volatility and has a limited operating history. Therefore, it has estimated the volatility data based on a study of publicly traded industry peer companies. For purposes of identifying these peer companies, the Company considered the industry, stage of development, size and financial leverage of potential comparable companies. The estimated forfeiture rate is derived primarily from the Company's historical data, and the risk-free interest rate is based on the yield available on U.S. Treasury zero-coupon issues similar in duration to the expected term of the Company’s stock options. There were no stock options granted to employees or non-employee directors during the three months ended March 31, 2013. The weighted-average assumptions used to estimate the fair value of stock options granted to employees and non-employee directors during the three months ended March 31, 2012 and the resulting fair values are as follows:
The fair value of restricted stock units granted to employees and non-employee directors is measured by reference to the fair value of the underlying shares on the date of grant. Stock-based compensation expense related to stock options granted to employees and non-employee directors was $2.4 million and $1.9 million for the three months ended March 31, 2013 and 2012, respectively. Stock-based compensation expense related to restricted stock units granted to employees and non-employee directors was $1.1 million and $0.4 million for the three months ended March 31, 2013 and 2012, respectively. As of March 31, 2013, there was $17.1 million and $19.5 million of unrecognized compensation cost related to stock options and restricted stock units, respectively, which was expected to be recognized over a weighted-average period of 2.5 years and 3.6 years, respectively. Future grants of equity awards will increase the amount of stock-based compensation expense to be recorded. Stock-Based Compensation Related to Non-Employees The Company periodically grants equity awards to non-employees in exchange for goods and services. No awards were granted to non-employees in exchange for goods and services during the three months ended March 31, 2013 and 2012, respectively. Stock-based compensation expense for non-employees is based on the fair value of the award on the measurement date, which is the earlier of the date by which the commitment for performance by the non-employee to earn the award is reached and the date on which the non-employee’s performance is complete. Each reporting period, the fair value of the unvested non-employee options or restricted stock units is revalued until the awards vest on the measurement date. Non-employee stock-based compensation expense related to stock options was $0.1 million and $0.2 million for the three months ended March 31, 2013 and 2012, respectively. Non-employee stock-based compensation expense related to restricted stock units was $0.1 million and $0.2 million for the three months ended March 31, 2013 and 2012, respectively. |
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The entire disclosure for shareholders' equity, comprised of portions attributable to the parent entity and noncontrolling interest, if any, including other comprehensive income (as applicable). Including, but not limited to: (1) balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings; (2) accumulated balance for each classification of other comprehensive income and total amount of comprehensive income; (3) amount and nature of changes in separate accounts, including the number of shares authorized and outstanding, number of shares issued upon exercise and conversion, and for other comprehensive income, the adjustments for reclassifications to net income; (4) rights and privileges of each class of stock authorized; (5) basis of treasury stock, if other than cost, and amounts paid and accounting treatment for treasury stock purchased significantly in excess of market; (6) dividends paid or payable per share and in the aggregate for each class of stock for each period presented; (7) dividend restrictions and accumulated preferred dividends in arrears (in aggregate and per share amount); (8) retained earnings appropriations or restrictions, such as dividend restrictions; (9) impact of change in accounting principle, initial adoption of new accounting principle and correction of an error in previously issued financial statements; (10) shares held in trust for Employee Stock Ownership Plan (ESOP); (11) deferred compensation related to issuance of capital stock; (12) note received for issuance of stock; (13) unamortized discount on shares; (14) description, terms, and number of warrants or rights outstanding; (15) shares under subscription and subscription receivables, effective date of new retained earnings after quasi-reorganization and deficit eliminated by quasi-reorganization and, for a period of at least ten years after the effective date, the point in time from which the new retained dates; and (16) retroactive effective of subsequent change in capital structure. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Income Taxes
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Mar. 31, 2013
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| Income Taxes [Abstract] | |
| Income Taxes [Text Block] | Income Taxes The Company uses an estimated annual effective tax rate based upon a projection of its annual fiscal year results to measure the income tax benefit or expense recognized in each interim period. The Company’s effective tax rate, including the impact of discrete benefit items, was 36% and 37% for the three months ended March 31, 2013 and 2012, respectively. The Company's effective tax rate remained consistent with prior period changing only by 1%. |
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The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Related-Party Transactions
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3 Months Ended |
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Mar. 31, 2013
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| Related-Party Transactions | |
| Related Party Transactions [Text Block] | Related-Party Transactions During the three months ended March 31, 2013, three members of the Company’s Board of Directors also served on the boards of directors of RPX clients. The Company recognized subscription fee revenue of $1.2 million related to these clients. During the three months ended March 31, 2012, two members of the Company’s Board of Directors also served on the boards of directors of RPX clients. The Company recognized subscription fee revenue of $0.8 million related to these clients. As of March 31, 2013 and December 31, 2012, there were no receivables due from these clients. |
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The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Segment Reporting
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Mar. 31, 2013
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| Segment Reporting [Text Block] | Segment Reporting Operating segments are components of an enterprise about which separate financial information is available. Operating segments are reported in a manner consistent with the internal reporting provided to the chief operating decision maker, or decision-making group, in deciding how to allocate resources and in assessing performance. The Company’s chief operating decision maker is its Chief Executive Officer. The Company’s Chief Executive Officer reviews financial information presented on a consolidated basis and, as a result, the Company concluded that there is only one operating and reportable segment. The Company markets its solution to companies around the world. Revenue is generally attributed to geographic areas based on the country in which the client is domiciled. The following table presents revenue by location and revenue generated by country as a percentage of total revenue for the applicable period, for countries representing 10% or more of revenues for the periods presented (dollars in thousands):
Long-lived assets information by location is presented below (in thousands):
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The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Basis of Presentation and Significant Accounting Policies (Policies)
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Mar. 31, 2013
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| Basis of Presentation and Significant Accounting Policies (Abstract) | |
| Basis of Presentation [Policy Text Block] | Basis of Presentation The accompanying unaudited condensed consolidated financial statements of the Company have been prepared in accordance with accounting principles generally accepted in the United States of America and with the instructions for Form 10-Q and Regulation S-X for interim financial statements. Accordingly, they do not include all of the information and notes required for complete financial statements. In the opinion of management, all adjustments, consisting of normal recurring items, have been included in the accompanying financial statements state fairly the results of the interim periods. The unaudited condensed consolidated financial statements should be read in conjunction with the audited financial statements and accompanying notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2012. Operating results for the three months ended March 31, 2013 are not necessarily indicative of the results that may be expected for any subsequent interim period or for the year ending December 31, 2013. |
| Recently Adopted Accounting Standards [Policy Text Block] | Recently Adopted Accounting Standards In February 2013, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2013-02, Reporting of Amounts of Reclassified Out of Accumulated Other Comprehensive Income (“ASU 2013-02”), which amends Comprehensive Income (Topic 220) in the Accounting Standards Codification (“ASC”). These amendments require an entity to provide information about the amounts reclassified out of accumulated other comprehensive income by component. In addition, an entity is required to present significant amounts reclassified out of accumulated other comprehensive income by the respective line items of net income. The amendments in ASU 2013-02 are effective for the Company's interim and annual fiscal periods beginning January 1, 2013. The adoption of ASU 2013-02 did not have a material impact on the Company’s financial position or results of operations. In October 2012, the FASB issued ASU 2012-04, Technical Corrections and Improvements (“ASU 2012-04”), which amends a wide range of topics in the ASC. These amendments include technical corrections and improvements to the ASC and conforming amendments related to fair value measurements. The amendments in ASU 2012-04 are effective for the Company's interim and annual fiscal periods beginning January 1, 2013. The adoption of ASU 2012-04 did not have a material impact on the Company’s financial position or results of operations. In July 2012, the FASB issued ASU 2012-02, Intangibles - Goodwill and Other (Topic 350): Testing Indefinite-Lived Intangible Assets for Impairment (“ASU 2012-02”), which amends ASU 2011-08, Intangibles - Goodwill and Other (Topic 350): Testing Indefinite-Lived Intangible Assets for Impairment and permits an entity to first assess qualitative factors to determine whether it is more likely than not that an indefinite-lived intangible asset is impaired as a basis for determining whether it is necessary to perform the quantitative impairment test in accordance with Subtopic 350-30, Intangibles - Goodwill and Other - General Intangibles Other than Goodwill. The amendments in ASU 2012-02 are effective for the Company's interim and annual fiscal periods beginning January 1, 2013. The adoption of ASU 2012-02 did not have a material impact on the Company’s financial position or results of operations. |
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Disclosure of accounting policy for basis of accounting, or basis of presentation, used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS). No definition available.
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Disclosure of the adoption of new accounting pronouncements that may impact the entity's financial reporting. No definition available.
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Net Income Available to Common Stockholders (Tables)
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Mar. 31, 2013
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| Basic and Diluted Net Income Per Share Available To Common Stockholders [Table Text Block] | The following table presents the calculation of basic and diluted net income per share available to common stockholders (in thousands, except per share data):
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| Anti-Dilutive Securities Not Included In Diluted Shares Outstanding Calculation [Table Text Block] | For the three months ended March 31, 2013 and 2012, the following securities were not included in the calculation of diluted shares outstanding, as the effect would have been anti-dilutive (in thousands):
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Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure of the numerators and the denominators of the basic and diluted per-share (or per-unit) computations for income from continuing operations, including the effect that has been given to preferred dividends. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Fair Value Measurements (Tables)
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3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Mar. 31, 2013
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| Fair Value Measurements | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Finance Assets Measured At Fair Value On A Recurring Basis [Table Text Block] | The following tables present the financial assets measured at fair value on a recurring basis as of March 31, 2013 and December 31, 2012 (in thousands):
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Short-term Investments (Tables)
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3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Mar. 31, 2013
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| Short-term Investment [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Summary Of Investments In Available-For-Sale Securities [Table Text Block] | The following table summarizes the Company’s investments in available-for-sale securities as of March 31, 2013 and December 31, 2012 (in thousands):
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Patent Assets, Net (Tables)
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3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Mar. 31, 2013
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| Patent Assets [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Patent Assets, Net [Text Block] | Patent assets, net consisted of the following (in thousands):
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| Expected Future Annual Amortization Of Patent Assets [Text Block] | The following table summarizes the expected future annual amortization expense of patent assets as of March 31, 2013 (in thousands):
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
-- None. No documentation exists for this element. -- No definition available.
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| X | ||||||||||
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- Definition
Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. No definition available.
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Property and Equipment, Net (Tables)
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3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Mar. 31, 2013
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| Property and Equipment, Net | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Property And Equipment, Net [Table Text Block] | Property and equipment, net, consisted of the following (in thousands):
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Tabular disclosure of the useful life and salvage value of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Intangible Assets, Net (Tables)
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3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Mar. 31, 2013
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| Acquired Finite-Lived Intangible Assets [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Intangible Assets, Net [Table Text Block] | Intangible assets, net, as of March 31, 2013 and December 31, 2012 consisted of the following (in thousands):
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| Expected Future Annual Amortization Of Intangible Assets [Text Block] | The following table summarizes the expected future annual amortization expense of patent assets as of March 31, 2013 (in thousands):
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Intangible Assets Net [Member]
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| Acquired Finite-Lived Intangible Assets [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expected Future Annual Amortization Of Intangible Assets [Text Block] | The estimated future amortization expenses for intangible assets are summarized below (in thousands):
|
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. No definition available.
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| X | ||||||||||
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- Definition
Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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|
Accrued and Other Current Liabilities (Tables)
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3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Mar. 31, 2013
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| Accrued and Other Current Liabilities | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accrued And Other Current Liabilities [Table Text Block] | Accrued and other current liabilities consisted of the following (in thousands):
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Tabular disclosure of the (a) carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business (accounts payable); (b) other payables; and (c) accrued liabilities. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). An alternative caption includes accrued expenses. No definition available.
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|
Stockholders' Equity (Tables)
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3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Mar. 31, 2013
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| Stock-Based Compensation | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Activity Under Equity Award Plans And Related Information [Table Text Block] | A summary of the Company’s activity under its equity award plans and related information is as follows (in thousands, except per share data):
|
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| Restricted Stock Unit Activity [Table Text Block] | The summary of restricted stock unit activity is as follows:
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| Weighted-Average Assumptions Used To Estimate The Fair Value Of Stock Options [Table Text Block] |
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Tabular disclosure of the changes in outstanding nonvested restricted stock units. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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|
Segment Reporting (Tables)
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3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Mar. 31, 2013
|
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| Segment Reporting | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Revenue By Location [Table Text Block] | The following table presents revenue by location and revenue generated by country as a percentage of total revenue for the applicable period, for countries representing 10% or more of revenues for the periods presented (dollars in thousands):
|
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| Long-Lived Assets Information By Location [Table Text Black] | Long-lived assets information by location is presented below (in thousands): March 31, December 31, 2013 2012United States$3,210 $3,116Japan20 28Total long-lived assets$3,230 $3,144 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Disclosures about long-lived assets (except financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets) that are (1) located in the entity's country of domicile, and (2) located in all foreign countries in which the entity holds assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
|
- Definition
Tabular disclosure of the names of foreign countries from which revenue is material and the amount of revenue from external customers attributed to those countries. An entity may also provide subtotals of geographic information about groups of countries. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Net Income Available to Common Stockholders (Detail) - Basic and Diluted Net Income Per Share Available To Common Stockholders (USD $)
In Thousands, except Per Share data, unless otherwise specified |
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2013
|
Mar. 31, 2012
|
|
| Basic and Diluted Net Income Per Share Available To Common Stockholders [Abstract] | ||
| Net income | $ 14,695 | $ 8,081 |
| Allocation of net income to participating stockholders | (17) | (241) |
| Net income available to common stockholders – basic | 14,678 | 7,840 |
| Undistributed earnings re-allocated to common stockholders | 0 | 13 |
| Net income available to common stockholders – diluted | $ 14,678 | $ 7,853 |
| Weighted-average shares used in computing basic net income available to comon stockholders | 51,201 | 48,308 |
| Dilutive effect of stock options and restricted stock units using treasury-stock method | 1,452 | 2,918 |
| Weighted-average shares used in computing diluted net income available to common stockholders | 52,653 | 51,226 |
| Basic | $ 0.29 | $ 0.16 |
| Diluted | $ 0.28 | $ 0.15 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Net Income or Loss Available to Common Stockholders plus adjustments resulting from the assumption that dilutive convertible securities were converted, options or warrants were exercised, or that other shares were issued upon the satisfaction of certain conditions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Aggregate of earnings distributed and earnings allocated to participating securities under the two-class method to the extent that participating securities may share in earnings as if all of the earnings for the period had been distributed. No definition available.
|
| X | ||||||||||
|
- Definition
Earnings allocated (not distributed) to participating securities under the two-class method to the extent that participating securities may share in earnings as if all of the earnings for the period had been distributed. No definition available.
|
| X | ||||||||||
|
- Definition
The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Net Income Available to Common Stockholders (Detail) - Anti-Dilutive Securities Not Included In Diluted Shares Outstanding Calculation
In Thousands, unless otherwise specified |
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2013
|
Mar. 31, 2012
|
|
|
Stock options outstanding [Member]
|
||
| Weighted-average anti-dilutive securities | 2,622 | 1,377 |
|
Restricted stock units outstanding [Member]
|
||
| Weighted-average anti-dilutive securities | 347 | 99 |
|
Shares of common stock subject to repurchase [Member]
|
||
| Weighted-average anti-dilutive securities | 59 | 1,483 |
| X | ||||||||||
|
- Definition
Weighted-average anti-dilutive securities not included in the calculation for diluted shares outstanding No definition available.
|
|
Fair Value Measurements (Detail) - Financial Assets Measured At Fair Value On A Recurring Basis (USD $)
In Thousands, unless otherwise specified |
Mar. 31, 2013
|
Dec. 31, 2012
|
|---|---|---|
| Cash equivalents | ||
| Cash equivalents | $ 81,057 | $ 47,462 |
| Short-term investments | ||
| Short-term investments | 147,677 | 126,092 |
|
Commercial paper [Member]
|
||
| Short-term investments | ||
| Short-term investments | 5,499 | 13,697 |
|
Muncipal bonds [Member]
|
||
| Short-term investments | ||
| Short-term investments | 137,135 | 105,515 |
|
Corporate bonds [Member]
|
||
| Short-term investments | ||
| Short-term investments | 5,043 | 6,880 |
|
Commercial paper [Member]
|
||
| Cash equivalents | ||
| Cash equivalents | 61,898 | 19,800 |
|
Muncipal bonds [Member]
|
||
| Cash equivalents | ||
| Cash equivalents | 10,512 | 3,992 |
|
U.S. government and agency securities [Member]
|
||
| Cash equivalents | ||
| Cash equivalents | 8,557 | 9,000 |
|
Money market funds [Member]
|
||
| Cash equivalents | ||
| Cash equivalents | 90 | 14,670 |
|
Fair Value, Inputs, Level 1 [Member]
|
||
| Cash equivalents | ||
| Cash equivalents | 90 | 14,670 |
|
Fair Value, Inputs, Level 1 [Member] | Money market funds [Member]
|
||
| Cash equivalents | ||
| Cash equivalents | 90 | 14,670 |
|
Fair Value, Inputs, Level 2 [Member]
|
||
| Cash equivalents | ||
| Cash equivalents | 80,967 | 32,792 |
| Short-term investments | ||
| Short-term investments | 147,677 | 126,092 |
|
Fair Value, Inputs, Level 2 [Member] | Commercial paper [Member]
|
||
| Short-term investments | ||
| Short-term investments | 5,499 | 13,697 |
|
Fair Value, Inputs, Level 2 [Member] | Muncipal bonds [Member]
|
||
| Short-term investments | ||
| Short-term investments | 137,135 | 105,515 |
|
Fair Value, Inputs, Level 2 [Member] | Corporate bonds [Member]
|
||
| Short-term investments | ||
| Short-term investments | 5,043 | 6,880 |
|
Fair Value, Inputs, Level 2 [Member] | Commercial paper [Member]
|
||
| Cash equivalents | ||
| Cash equivalents | 61,898 | 19,800 |
|
Fair Value, Inputs, Level 2 [Member] | Muncipal bonds [Member]
|
||
| Cash equivalents | ||
| Cash equivalents | 10,512 | 3,992 |
|
Fair Value, Inputs, Level 2 [Member] | U.S. government and agency securities [Member]
|
||
| Cash equivalents | ||
| Cash equivalents | $ 8,557 | $ 9,000 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Company may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents investment securities as of the balance sheet date which may include marketable securities, derivative financial instruments, and investments accounted for under the equity method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Short-term Investments (Detail) - Summary Of Investments In Available-For-Sale Securities (USD $)
In Thousands, unless otherwise specified |
Mar. 31, 2013
|
Dec. 31, 2012
|
|---|---|---|
| Investment Holdings [Line Items] | ||
| Amortized Cost | $ 147,602 | $ 126,113 |
| Unrealized Gains | 75 | 1 |
| Unrealized Losses | 0 | (22) |
| Estimated Fair Value | 147,677 | 126,092 |
|
Municipal bonds [Member]
|
||
| Investment Holdings [Line Items] | ||
| Amortized Cost | 137,060 | 105,536 |
| Unrealized Gains | 75 | 1 |
| Unrealized Losses | 0 | (22) |
| Estimated Fair Value | 137,135 | 105,515 |
|
Commercial paper [Member]
|
||
| Investment Holdings [Line Items] | ||
| Amortized Cost | 5,499 | 13,697 |
| Unrealized Gains | 0 | 0 |
| Unrealized Losses | 0 | 0 |
| Estimated Fair Value | 5,499 | 13,697 |
|
Corporate bonds [Member]
|
||
| Investment Holdings [Line Items] | ||
| Amortized Cost | 5,043 | 6,880 |
| Unrealized Gains | 0 | 0 |
| Unrealized Losses | 0 | 0 |
| Estimated Fair Value | $ 5,043 | $ 6,880 |
| X | ||||||||||
|
- Definition
This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
This item represents the gross unrealized gains for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
This item represents the gross unrealized losses for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities. No definition available.
|
| X | ||||||||||
|
- Details
|
|
Patent Assets, Net (Detail) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2013
|
Mar. 31, 2012
|
|
| Finite-Lived Intangible Assets [Line Items] | ||
| Amortization of patent assets | $ 0.4 | $ 0.3 |
|
Patents [Member]
|
||
| Finite-Lived Intangible Assets [Line Items] | ||
| Amortization of patent assets | $ 22.6 | $ 17.7 |
|
Minimum [Member] | Patents [Member]
|
||
| Finite-Lived Intangible Assets [Line Items] | ||
| Patent assets, useful life | 24 months | |
|
Maximum [Member] | Patents [Member]
|
||
| Finite-Lived Intangible Assets [Line Items] | ||
| Patent assets, useful life | 60 months | |
|
Weighted Average [Member] | Patents [Member]
|
||
| Finite-Lived Intangible Assets [Line Items] | ||
| Patent assets, useful life | 46 months | |
| X | ||||||||||
|
- Definition
The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
|
|
Patent Assets, Net (Detail) - Patent Assets, Net (USD $)
In Thousands, unless otherwise specified |
Mar. 31, 2013
|
Dec. 31, 2012
|
|---|---|---|
| Finite-Lived Intangible Assets [Line Items] | ||
| Patent assets | $ 6,311 | $ 6,311 |
| Accumulated amortization | (3,464) | (3,085) |
| Patent assets, net | 206,195 | 199,314 |
|
Patents [Member]
|
||
| Finite-Lived Intangible Assets [Line Items] | ||
| Patent assets | 433,312 | 403,875 |
| Accumulated amortization | (227,117) | (204,561) |
| Patent assets, net | 206,195 | 199,314 |
|
Additions [Member] | Patents [Member]
|
||
| Finite-Lived Intangible Assets [Line Items] | ||
| Patent assets | 29,437 | |
| Accumulated amortization | $ (22,556) |
| X | ||||||||||
|
- Definition
Carrying amount of finite-lived patent assets after accumulated amortization as of the balance sheet date of the costs pertaining to the exclusive legal rights granted to the owner to exploit an invention or a process for a period of time specified by law. Such costs may have been expended to directly apply and receive patent rights, or to acquire such rights. No definition available.
|
| X | ||||||||||
|
- Definition
Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Patent Assets, Net (Detail) - Expected Future Annual Amortization Expense Of Patent Assets (USD $)
In Thousands, unless otherwise specified |
Mar. 31, 2013
|
Dec. 31, 2012
|
|---|---|---|
| Finite-Lived Intangible Assets [Line Items] | ||
| 2013 (remainder) | $ 1,117 | |
| 2014 | 906 | |
| 2015 | 625 | |
| 2016 | 199 | |
| Total estimated future amortization expense | 206,195 | 199,314 |
|
Patents [Member]
|
||
| Finite-Lived Intangible Assets [Line Items] | ||
| 2013 (remainder) | 65,080 | |
| 2014 | 64,064 | |
| 2015 | 46,212 | |
| 2016 | 24,955 | |
| 2017 | 5,721 | |
| Thereafter | 163 | |
| Total estimated future amortization expense | $ 206,195 | $ 199,314 |
| X | ||||||||||
|
- Definition
Carrying amount of finite-lived patent assets after accumulated amortization as of the balance sheet date of the costs pertaining to the exclusive legal rights granted to the owner to exploit an invention or a process for a period of time specified by law. Such costs may have been expended to directly apply and receive patent rights, or to acquire such rights. No definition available.
|
| X | ||||||||||
|
- Definition
Amount of amortization expense expected to be recognized after the fifth fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life. No definition available.
|
| X | ||||||||||
|
- Definition
Amount of amortization expense expected to be recognized in the remainder of the fiscal year following the latest fiscal year ended for assets, excluding financial assets and goodwill, lacking physical substance with a finite life. No definition available.
|
| X | ||||||||||
|
- Definition
Amount of amortization expense expected to be recognized during the fifth fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of amortization expense expected to be recognized during the fourth fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of amortization expense expected to be recognized during the third fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of amortization expense expected to be recognized during the second fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Property and Equipment, Net (Detail) (USD $)
|
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2013
|
Mar. 31, 2012
|
|
| Property, Plant and Equipment [Line Items] | ||
| Depreciation and amortization expense | $ 23,325,000 | $ 18,125,000 |
|
Internal-use software [Member]
|
||
| Property, Plant and Equipment [Line Items] | ||
| Stock-based compensation capitalized as part of internal-use software | 100,000 | 100,000 |
|
Property and equipment, types [Member]
|
||
| Property, Plant and Equipment [Line Items] | ||
| Depreciation and amortization expense | $ 400,000 | $ 200,000 |
| X | ||||||||||
|
- Definition
Stock-based compensation capitalized as part of the cost of internal-use software No definition available.
|
| X | ||||||||||
|
- Definition
The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Property and Equipment, Net (Detail) - Property And Equipment, Net (USD $)
In Thousands, unless otherwise specified |
Mar. 31, 2013
|
Dec. 31, 2012
|
|---|---|---|
| Property, Plant and Equipment [Line Items] | ||
| Total property, plant and equipment, gross | $ 5,353 | $ 4,877 |
| Less: Accumulated depreciation and amortization | (2,123) | (1,733) |
| Total property and equipment, net | 3,230 | 3,144 |
|
Internal-use software [Member]
|
||
| Property, Plant and Equipment [Line Items] | ||
| Internal-use software | 3,441 | 3,078 |
|
Computer, equipment and software [Member]
|
||
| Property, Plant and Equipment [Line Items] | ||
| Computer, equipment and software | 1,054 | 960 |
|
Furniture and fixtures [Member]
|
||
| Property, Plant and Equipment [Line Items] | ||
| Furniture and fixtures | 662 | 662 |
|
Leasehold improvements [Member]
|
||
| Property, Plant and Equipment [Line Items] | ||
| Leasehold improvements | 162 | 162 |
|
Work-in-progress [Member]
|
||
| Property, Plant and Equipment [Line Items] | ||
| Work-in-progress | $ 34 | $ 15 |
| X | ||||||||||
|
- Definition
The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The gross amount of capitalized computer software costs as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Gross amount, at the balance sheet date, of long-lived assets under construction that include construction costs to date on capital projects that have not been completed and assets being constructed that are not ready to be placed into service. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Gross amount, at the balance sheet date, of long-lived, depreciable assets commonly used in offices and stores. Examples include desks, chairs, and store fixtures. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Gross amount, at the balance sheet date, of long-lived, depreciable assets that are an addition or improvement to assets held under lease arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Gross amount, as of the balance sheet date, of long-lived, depreciable assets used in the production process to produce goods and services. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Gross amount of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Intangible Assets, Net (Detail) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2013
|
Mar. 31, 2012
|
|
| Intangible Assets, Net | ||
| Amortization of intangible assets | $ 0.4 | $ 0.3 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Intangible Assets, Net (Detail) - Estimated Future Amortization Expenses For Intangible Assets (USD $)
In Thousands, unless otherwise specified |
Mar. 31, 2013
|
Dec. 31, 2012
|
|---|---|---|
| Estimated Future Amortization Expenses for Intangible Assets [Abstract] | ||
| 2013 (remainder) | $ 1,117 | |
| 2014 | 906 | |
| 2015 | 625 | |
| 2016 | 199 | |
| Total estimated future amortization expense | $ 2,847 | $ 3,226 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of amortization expense expected to be recognized in the remainder of the fiscal year following the latest fiscal year ended for assets, excluding financial assets and goodwill, lacking physical substance with a finite life. No definition available.
|
| X | ||||||||||
|
- Definition
Amount of amortization expense expected to be recognized during the fourth fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of amortization expense expected to be recognized during the third fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of amortization expense expected to be recognized during the second fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Accrued and Other Current Liabilities (Detail) - Accrued And Other Current Liabilities (USD $)
In Thousands, unless otherwise specified |
Mar. 31, 2013
|
Dec. 31, 2012
|
|---|---|---|
| Fair Value Inputs, Liabilities, Quantitative Information [Line Items] | ||
| Accrued liabilities | $ 5,122 | $ 7,206 |
| Other current liabilities | 12,265 | 1,813 |
|
Accrued payroll-related expenses [Member]
|
||
| Fair Value Inputs, Liabilities, Quantitative Information [Line Items] | ||
| Accrued liabilities | 3,010 | 6,567 |
|
Accrued expenses [Member]
|
||
| Fair Value Inputs, Liabilities, Quantitative Information [Line Items] | ||
| Accrued liabilities | 2,112 | 639 |
|
Patent and other assets purchased but not paid [Member]
|
||
| Fair Value Inputs, Liabilities, Quantitative Information [Line Items] | ||
| Other current liabilities | 11,350 | 1,100 |
|
Other current liabilities [Member]
|
||
| Fair Value Inputs, Liabilities, Quantitative Information [Line Items] | ||
| Other current liabilities | $ 915 | $ 713 |
| X | ||||||||||
|
- Definition
Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Aggregate carrying amount of current liabilities (due within one year or within the normal operating cycle if longer) not separately disclosed in the balance sheet. Includes costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered and of liabilities not separately disclosed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Commitments and Contingencies (Detail) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2013
|
Mar. 31, 2012
|
|
| Commitments and Contingencies Disclosure | ||
| Operating Leases, Rent Expense | $ 0.6 | $ 0.6 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Rental expense incurred for leased assets including furniture and equipment which has not been recognized in costs and expenses applicable to sales and revenues; for example, cost of goods sold or other operating costs and expenses. No definition available.
|
| X | ||||||||||
|
- Definition
Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
As of the balance sheet date, the aggregate unrecognized cost of equity-based awards made to employees under equity-based compensation awards that have yet to vest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of expense reported during the period resulting from the transaction in which equity securities were issued to pay for goods or nonemployee services. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Number of additional shares authorized for issuance under an established share-based compensation plan. No definition available.
|
| X | ||||||||||
|
- Definition
The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Gross number of share options (or share units) granted during the period. No definition available.
|
| X | ||||||||||
|
- Definition
Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of options outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
As of the balance sheet date, the weighted-average exercise price (at which grantees can acquire the shares reserved for issuance) for exercisable stock options that are fully vested or expected to vest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of difference between fair value of the underlying shares reserved for issuance and exercise prices of fully vested and expected to vest options outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
As of the balance sheet date, the number of shares into which fully vested and expected to vest stock options outstanding can be converted under the option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
As of the balance sheet date, the weighted-average exercise price for outstanding stock options that are fully vested or expected to vest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Weighted average remaining contractual term for fully vested and expected to vest options outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Weighted average price at which option holders acquired shares when converting their stock options into shares. No definition available.
|
| X | ||||||||||
|
- Definition
Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated. No definition available.
|
| X | ||||||||||
|
- Definition
Weighted average price at which grantees can acquire the shares reserved for issuance on stock options awarded. No definition available.
|
| X | ||||||||||
|
- Definition
Number of share options (or share units) exercised during the current period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Share Based Compensation Arrangement by Share Based Payment Award, Equity Instruments Other Than Options, Outstanding, Intrinsic Value No definition available.
|
| X | ||||||||||
|
- Definition
The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Stockholders' Equity (Detail) - Weighted Average Assumptions To Estimate The Fair Value Of Stock Options (USD $)
|
3 Months Ended |
|---|---|
|
Mar. 31, 2012
|
|
| Weighted Average Fair Value Assumptions for Stock-Based Compensation [Abstract] | |
| Risk-free rate | 1.15% |
| Expected volatility | 61.00% |
| Expected term (in years) | 6 years 0 months 0 days |
| Grant date fair value | $ 9.08 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The risk-free interest rate assumption that is used in valuing an option on its own shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Income Taxes (Details)
|
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2013
|
Mar. 31, 2012
|
|
| Income Taxes [Abstract] | ||
| Effective tax rate, including the impact of discrete benefit items | 36.00% | 37.00% |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Related-Party Transactions (Detail) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2013
|
Mar. 31, 2012
|
|
| Related-Party Transactions | ||
| Subscription fee revenue from related party transactions | $ 1.2 | $ 0.8 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of transactions with related party during the financial reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Segment Reporting (Detail)
|
3 Months Ended |
|---|---|
|
Mar. 31, 2013
|
|
| Segment Reporting | |
| Number of reportable segments | 1 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. No definition available.
|
|
Segment Reporting (Detail) - Revenue By Location (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2013
|
Mar. 31, 2012
|
|
| Total revenue (in dollars) | $ 61,194 | $ 43,849 |
| Total revenue | 100.00% | 100.00% |
|
United States [Member]
|
||
| United States (in dollars) | 37,567 | 24,484 |
| United States | 61.00% | 56.00% |
|
Japan [Member]
|
||
| Other foreign country (in dollars) | 10,661 | 9,609 |
| Other foreign country | 17.00% | 22.00% |
|
Taiwan [Member]
|
||
| Other foreign country (in dollars) | 6,017 | 2,447 |
| Other foreign country | 10.00% | 5.00% |
|
Other [Member]
|
||
| Other foreign country (in dollars) | $ 6,949 | $ 7,309 |
| Other foreign country | 12.00% | 17.00% |
| X | ||||||||||
|
- Definition
Country Of Domicile Percent Of Total Revenue No definition available.
|
| X | ||||||||||
|
- Definition
Foreign Country Percent Of Total Revenue No definition available.
|
| X | ||||||||||
|
- Definition
Percent of Total Revenue No definition available.
|
| X | ||||||||||
|
- Definition
Revenues from external customers attributed to the entity's country of domicile. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Revenues from external customers attributed to all foreign countries in total from which the entity derives revenues. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Segment Reporting (Detail) - Long-lived Asset Information By Location (USD $)
In Thousands, unless otherwise specified |
Mar. 31, 2013
|
Dec. 31, 2012
|
|---|---|---|
| Long-lived Asset Information by Location [Abstract] | ||
| United States | $ 3,210 | $ 3,116 |
| Japan | 20 | 28 |
| Total long-lived assets | $ 3,230 | $ 3,144 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets, located in the entity's country of domicile. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets, located in foreign countries in total in which the entity holds assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|