Derivatives and Hedging Activities - Hedges (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Net investment hedges
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of gain or (loss) recognized in accumulated other comprehensive income	$ 144,946	$ 76,839
Amount of gain or (loss) excluded from effectiveness testing included in income	5,089	4,163
Cash flow hedges
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of gain or (loss) excluded from effectiveness testing included in income	(521)	88
Amount of gain or (loss) recognized in accumulated other comprehensive income	3,111	10,965
Amount of gain or (loss) reclassified from accumulated other comprehensive income to income	10,387	4,532
Foreign Currency Debt | Net investment hedges
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of gain or (loss) recognized in accumulated other comprehensive income	99,102	63,914
Foreign currency forward and option contracts (included component) | Cash flow hedges
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of gain or (loss) recognized in accumulated other comprehensive income	28,025	10,965
Foreign currency option contracts (excluded component) | Cash flow hedges
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of gain or (loss) recognized in accumulated other comprehensive income	1,318	0
Foreign currency option contracts (excluded component) | Cash flow hedges | Revenues
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of gain or (loss) excluded from effectiveness testing included in income	(521)	0
Interest rate locks | Cash flow hedges
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of gain or (loss) recognized in accumulated other comprehensive income	(26,232)	0
Interest rate locks | Cash flow hedges | Interest Expense
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of gain or (loss) reclassified from accumulated other comprehensive income to income	168	0
Foreign currency forward contracts | Cash flow hedges | 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	(11,000)	(5,329)
Foreign currency forward contracts | Cash flow hedges | Other income (expense)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of gain or (loss) excluded from effectiveness testing included in income	0	88
Foreign currency forward contracts | Cash flow hedges | Revenues
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of gain or (loss) reclassified from accumulated other comprehensive income to income	21,219	9,861
Cross-currency interest rate swap | Net investment hedges
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of gain or (loss) recognized in accumulated other comprehensive income	14,140	15,515
Amount of gain or (loss) recognized in accumulated other comprehensive income	31,704	(2,590)
Cross-currency interest rate swap | Net investment hedges | Interest Expense
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of gain or (loss) excluded from effectiveness testing included in income	$ 5,089	$ 4,163