Derivatives and Hedging Activities - Derivatives Not Designated as Hedging Instruments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivatives not designated as hedging instruments, gain (loss)	$ 133,373	$ 9,201
Embedded derivatives | Revenues
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivatives not designated as hedging instruments, gain (loss)	7,451	907
Economic hedge of embedded derivatives | Revenues
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivatives not designated as hedging instruments, gain (loss)	(7,902)	(57)
Foreign currency forward contracts | Other income (expense)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivatives not designated as hedging instruments, gain (loss)	$ 133,824	$ 8,351