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Fair Value Measurement - Level 3 Liability (Details) $ in Thousands | 9 Months Ended
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Sep. 30, 2016 USD ($)
Accounts payable and accrued expenses |
Fair Value, Liabilities Measured On Recurring Basis, Unobservable Input Reconciliation [Line Items] |
Short-term portion of deferred payments | $ 1,100
Deferred payments [Member] |
Schedule of changes in fair value of level 3 liability |
Balance at beginning of year | 3,278
Amounts paid | (7,358)
Contingent consideration in connection with NYCDA acquisition | 14,500
Other adjustments to fair value | 1,920
Balance at end of year | $ 12,340

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