Hedging - Derivative Fair Value (Details) - Designated as hedging instruments - Foreign currency forward contracts - Cash flow hedging - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Derivative [Line Items]
Total assets	$ 8,098	$ 9,725
Total liabilities	(6,333)	(7,354)
Prepaid expenses and other current assets
Derivative [Line Items]
Total assets	8,054	9,725
Other assets
Derivative [Line Items]
Total assets	44	0
Other current liabilities
Derivative [Line Items]
Total liabilities	(4,871)	(5,533)
Other long-term liabilities
Derivative [Line Items]
Total liabilities	$ (1,462)	$ (1,821)