Derivatives and Hedging - Amounts Recognized in the Condensed Consolidated Statements of Operations for Derivative Contracts (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Total (income) expense, net	$ (6,287)	$ 1,594
Interest expense, net
Derivative Instruments, Gain (Loss) [Line Items]
Total (income) expense, net	945	1,375
Other (gain) loss, net
Derivative Instruments, Gain (Loss) [Line Items]
Total (income) expense, net	$ (7,232)	$ 219