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Fair Value Measurements (Reconciliation of Level 3 Liabilities) (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Change in the estimated fair value of the contingent purchase price consideration | $ 307 | $ 597 | $ 69 | $ (59)
Unobservable Inputs (Level 3) [Member] |  |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Beginning Balance Liabilities |  |  | 6,651 |
Change in the estimated fair value of the contingent purchase price consideration |  |  | 69 |
Ending Balance Liabilities | $ 6,582 |  | $ 6,582 |

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- Definition Change in the fair value of contingent purchase price consideration. + References No definition available. + Details
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- Definition Fair value of contingent consideration in a business combination that is classified in shareholders' equity. + 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 (a) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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