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Fair Value Measurements (Tables) | 12 Months Ended
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Dec. 31, 2012
Fair Value Disclosures [Abstract] |
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis | Our financial assets and (liabilities) carried at fair value measured on a recurring basis as of December 31, 2012 and 2011, consisted of the following (in thousands):
|  |  |  | Fair Value Measurements Using
|  | Total Fair |  | Quoted prices in |  | Significant other |  | Significant
|  | Value at |  | active markets |  | observable inputs |  | Unobservable inputs
Description |  | December 31, 2012 |  | (Level 1) |  | (Level 2) |  | (Level 3)
Interest rate swap (1) |  | $ | (1,788 | ) |  | $ | — |  |  | $ | (1,788 | ) |  | $ | — |
|  |  |  | Fair Value Measurements Using
|  | Total Fair |  | Quoted prices in |  | Significant other |  | Significant
|  | Value at |  | active markets |  | observable inputs |  | Unobservable inputs
Description |  | December 31, 2011 |  | (Level 1) |  | (Level 2) |  | (Level 3)
Marketable securities (2) |  | $ | 2,798 |  |  | $ | 2,798 |  |  | $ | — |  |  | $ | — |
(1) The fair value of the interest rate swap is determined based on forward yield curves. (2) Our marketable securities, which consist entirely of available-for-sale equity securities, are valued using market prices in active markets. Level 1 instrument valuations are obtained from real-time quotes for transactions in active exchange markets involving identical assets.
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation | Changes in the fair value of our contingent liability during the years ended December 31, 2012 and 2011 consisted of the following (in thousands):
| 2012 |  | 2011
Beginning balance | $ | 1,290 |  |  | $ | — |
Contingent consideration liability recorded as the result of acquisitions (see Note 2) | 4,704 |  |  | 1,270 |
Initial purchase price adjustments finalized over the period (see Note 2) | 280 |  |  | — |
Fair value adjustments recorded to expense during the period | 480 |  |  | 20 |
Contingent payments made | (57 | ) |  | — |
Ending balance | $ | 6,697 |  |  | $ | 1,290 |
Fair Value Inputs, Liabilities, Quantitative Information | The recurring Level 3 measurement of our contingent consideration liability includes the following significant unobservable inputs at December 31, 2012 and 2011 (amount in thousands):
Contingent consideration liability |  | Fair value at December 31, 2012 |  | Valuation technique |  | Unobservable inputs |  | Range
Revenue-based payments |  | $ | 6,370 |  |  | Discounted cash flow |  | Discount rate |  | 10% - 14.5%
|  |  |  |  | Probability of milestone payment |  | 90%
|  |  |  |  |  | Projected year of payments |  | 2013-2028
Other payments |  | 327 |  |  | Discounted cash flow |  | Discount rate |  | 4.5%
|  |  |  |  | Probability of milestone payment |  | 100%
|  |  |  |  |  | Projected year of payments |  | 2013-2015
Contingent consideration liability |  | Fair value at December 31, 2011 |  | Valuation technique |  | Unobservable inputs |  | Range
Revenue-based payments |  | $ | 1,290 |  |  | Discounted cash flow |  | Discount rate |  | 10% - 14.5%
|  |  |  |  | Probability of milestone payment |  | 90%
|  |  |  |  |  | Projected year of payments |  | 2012-2028

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- Definition Tabular disclosure of quantitative information about the inputs used in the fair value measurement of liabilities. This disclosure may include, but is not limited to, the fair value of the liability, valuation technique used to measure fair value, the inputs used to measure fair value, the ranges of the inputs, and the weighted averages of the inputs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 + Details
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- Definition Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19279-110258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 32 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, 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). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19190-110258 + Details
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