Derivatives (Fair Value of the Company's Other Derivatives) (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019
Not Designated as Hedging Instrument | Other long term liabilities | Interest rate contracts
Derivative [Line Items]
Derivative liabilities	$ (1,913)	$ (1,007)	$ (4,494)
Not Designated as Hedging Instrument | Accrued expenses and other current liabilities | Foreign currency contract
Derivative [Line Items]
Derivative liabilities	440	2,742	(344)
Designated as Hedging Instrument | Accrued expenses and other current liabilities | Interest rate contracts
Derivative [Line Items]
Derivative liabilities	(8,081)	(3,118)	0
Designated as Hedging Instrument | Other assets | Interest rate contracts
Derivative [Line Items]
Derivative assets	$ (22,620)	$ (9,382)	$ (4,552)