Derivative Financial Instruments and Hedging - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Interest rate swap agreements
Derivative [Line Items]
Interest rate swap agreement, current liability	$ 2,476		$ 2,476		$ 3,888
Non-Designated | Foreign Exchange Forward
Derivative [Line Items]
Derivative term			1 year
Unrealized gain (loss) on derivative contracts	3,700
Cash Flow Hedging | Designated | Foreign Currency Contracts
Derivative [Line Items]
Derivative term			2 years
Derivative instruments amounts reclassified into income	0	$ 0	$ 0	$ 0
Fair Value Hedging | Designated | Interest rate swap agreements
Derivative [Line Items]
Interest rate swap agreement, current liability	2,500		2,500
Accumulated other comprehensive loss	$ 1,500		$ 1,500