Derivatives and Hedging - Amounts Recognized in the Condensed Consolidated Statements of Operations for Derivative Contracts (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Total expense, net	$ 8,552	$ 2,916	$ 2,264	$ 4,510
Interest (income) expense, net
Derivative Instruments, Gain (Loss) [Line Items]
Total expense, net	(355)	2,331	589	3,706
Other expense, net
Derivative Instruments, Gain (Loss) [Line Items]
Total expense, net	$ 8,907	$ 585	$ 1,675	$ 804