Derivative Financial Instruments and Hedging (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Interest rate swap agreements
Derivative [Line Items]
Interest rate swap agreement, current liability	$ 6,592	$ 4,474
Not Designated as Hedging Instrument | Foreign Currency Contracts
Derivative [Line Items]
Notional value	$ 21,100
Derivative term	1 year
Unrealized loss on derivative contracts	$ 1,300
Cash Flow Hedging | Designated as Hedging Instrument | Foreign Currency Contracts
Derivative [Line Items]
Notional value	10,800
Derivative liability, fair value	$ 700
Derivative term	2 years
Fair Value Hedging | Designated as Hedging Instrument | Interest rate swap agreements
Derivative [Line Items]
Interest rate swap agreement, current liability	$ 6,600
Accumulated other comprehensive loss	$ 4,000