Derivative Financial Instruments - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - Recurring - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Assets:
Derivative assets	$ 0	$ 109
Liabilities:
Derivative liabilities	5,751	256
Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Derivative assets	0	0
Liabilities:
Derivative liabilities	0	0
Significant Observable Inputs (Level 2)
Assets:
Derivative assets	0	109
Liabilities:
Derivative liabilities	5,751	256
Significant Unobservable Inputs (Level 3)
Assets:
Derivative assets	0	0
Liabilities:
Derivative liabilities	0	0
Forward Currency Contracts
Assets:
Derivative assets	0	109
Liabilities:
Derivative liabilities	892	243
Forward Currency Contracts | Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Derivative assets	0	0
Liabilities:
Derivative liabilities	0	0
Forward Currency Contracts | Significant Observable Inputs (Level 2)
Assets:
Derivative assets	0	109
Liabilities:
Derivative liabilities	892	243
Forward Currency Contracts | Significant Unobservable Inputs (Level 3)
Assets:
Derivative assets	0	0
Liabilities:
Derivative liabilities	0	0
Interest Rate Swaps
Liabilities:
Derivative liabilities	4,859	13
Interest Rate Swaps | Quoted Prices in Active Markets for Identical Assets (Level 1)
Liabilities:
Derivative liabilities	0	0
Interest Rate Swaps | Significant Observable Inputs (Level 2)
Liabilities:
Derivative liabilities	4,859	13
Interest Rate Swaps | Significant Unobservable Inputs (Level 3)
Liabilities:
Derivative liabilities	$ 0	$ 0