Derivatives and Hedging Activities - Cash Flow Hedges (Details) - Cash flow hedges - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of gain or (loss) recognized in accumulated other comprehensive income:	$ (5,252)	$ (22,639)	$ 32,119	$ (19,528)
Amount of gain or (loss) reclassified from accumulated other comprehensive income to income:	(9,031)	10,150	(15,601)	20,537
Amount of gain or (loss) excluded from effectiveness testing included in income:	(63)	(503)	(244)	(1,024)
Foreign currency forward and option contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of gain or (loss) recognized in accumulated other comprehensive income:	1,833	(22,347)	33,207	5,678
Foreign currency option
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Foreign currency option contracts (excluded component)	(45)	358	151	1,676
Foreign currency option | Revenues
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of gain or (loss) excluded from effectiveness testing included in income:	(63)	(503)	(244)	(1,024)
Interest rate locks
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of gain or (loss) recognized in accumulated other comprehensive income:	(7,040)	(650)	(1,239)	(26,882)
Interest rate locks | Interest Expense
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of gain or (loss) reclassified from accumulated other comprehensive income to income:	(1,049)	90	(1,854)	258
Foreign Exchange Forward | Revenues
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of gain or (loss) reclassified from accumulated other comprehensive income to income:	(16,565)	20,558	(29,534)	41,777
Foreign Exchange Forward | Costs and operating expenses
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of gain or (loss) reclassified from accumulated other comprehensive income to income:	$ 8,583	$ (10,498)	$ 15,787	$ (21,498)