Hedging - Notional Amount (Details) - Foreign Currency Forward Contracts - Designated as Hedging Instruments - Cash Flow Hedging - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Derivative [Line Items]
Notional amount of foreign currency forward contract	$ 1,324,378	$ 1,091,916
Euro
Derivative [Line Items]
Notional amount of foreign currency forward contract	892,995	745,099
British pound sterling
Derivative [Line Items]
Notional amount of foreign currency forward contract	250,528	160,427
Australian dollar
Derivative [Line Items]
Notional amount of foreign currency forward contract	100,733	99,922
Canadian dollar
Derivative [Line Items]
Notional amount of foreign currency forward contract	$ 80,122	$ 86,468