Fair Value Measurements - Schedule of Estimated Fair Values (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Fair Value, Inputs, Level 3
Assets/(Liabilities) Measured at Fair Value:
Contingent consideration liability	$ (191)	$ (756)
Recurring Basis
Assets/(Liabilities) Measured at Fair Value:
Contingent consideration liability	(191)	(756)
Recurring Basis | Interest Rate Swap
Assets/(Liabilities) Measured at Fair Value:
Interest rate swap derivative instrument	479
Recurring Basis | Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets/(Liabilities) Measured at Fair Value:
Contingent consideration liability	0	0
Recurring Basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Interest Rate Swap
Assets/(Liabilities) Measured at Fair Value:
Interest rate swap derivative instrument	0
Recurring Basis | Significant Other Observable Inputs (Level 2)
Assets/(Liabilities) Measured at Fair Value:
Contingent consideration liability	0	0
Recurring Basis | Significant Other Observable Inputs (Level 2) | Interest Rate Swap
Assets/(Liabilities) Measured at Fair Value:
Interest rate swap derivative instrument	479
Recurring Basis | Fair Value, Inputs, Level 3
Assets/(Liabilities) Measured at Fair Value:
Contingent consideration liability	(191)	$ (756)
Recurring Basis | Fair Value, Inputs, Level 3 | Interest Rate Swap
Assets/(Liabilities) Measured at Fair Value:
Interest rate swap derivative instrument	$ 0