Derivative Instruments And Hedging Activities - Derivative Instruments Designated As Hedging Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Derivatives, Fair Value [Line Items]
Asset derivative instruments designated as hedging instruments	$ 0	$ 44
Liability derivative instruments designated as hedging instruments	26	401
Other Current Assets | Interest Rate Swaps
Derivatives, Fair Value [Line Items]
Asset derivative instruments designated as hedging instruments	0	44
Accrued Liabilities | Interest Rate Swaps
Derivatives, Fair Value [Line Items]
Liability derivative instruments designated as hedging instruments	26	0
Accrued Liabilities | Foreign Exchange Contracts
Derivatives, Fair Value [Line Items]
Liability derivative instruments designated as hedging instruments	$ 0	$ 401