Derivatives - Schedule of Loss (Gain) Derivatives Not Designated as Hedging (Details) - Derivatives Not Designated as Hedging - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Interest (income) expense | Interest rate swaps
Derivatives [Line Items]
Loss (gain) on derivatives	$ 1,072	$ (320)	$ 5,854	$ (790)
Loss on foreign currency exchange | Foreign currency forward contracts
Derivatives [Line Items]
Loss (gain) on derivatives	$ 4,586	$ 37,552	$ 36,206	$ 37,552