Fair Value Measurements - Contingent Consideration Payable (Details) - Contingent Consideration - USD ($) $ in Thousands |
3 Months Ended | |
---|---|---|
Mar. 31, 2016 |
Mar. 31, 2015 |
|
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] | ||
Balance, beginning of period | $ 13,889 | $ 23,160 |
Payments of contingent consideration | (189) | (169) |
Change in fair value of contingent consideration | 0 | (7,616) |
Balance, end of period | $ 13,700 | $ 15,375 |