Stock-Based Compensation and Equity - Reclassifications Out of Accumulated Other Comprehensive Loss Rollforward (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax
Beginning equity balance	$ 6,890,455	$ 6,773,076	$ 6,878,369	$ 6,948,173
Amounts reclassified from accumulated other comprehensive loss to:
Non-operating income	(3,065)	(4,588)	(9,421)	(9,980)
Interest expense	49,252	52,182	100,892	104,722
Other Comprehensive Income (Loss)	3,950	4,405	9,967	(34,946)
Ending equity balance	7,300,767	6,802,455	7,300,767	6,802,455
AOCI Including Portion Attributable to Noncontrolling Interest
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax
Other comprehensive income (loss) before reclassifications	4,366	8,771	8,876	(27,035)
Amounts reclassified from accumulated other comprehensive loss to:
Total	(416)	(4,366)	1,091	(7,911)
Other Comprehensive Income (Loss)	3,950	4,405	9,967	(34,946)
AOCI Including Portion Attributable to Noncontrolling Interest | Amounts reclassified from accumulated other comprehensive loss to:
Amounts reclassified from accumulated other comprehensive loss to:
Non-operating income	(614)	(4,834)	567	(8,617)
Interest expense	198	468	524	706
Gains and (Losses) on Derivative Instruments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax
Other comprehensive income (loss) before reclassifications	(1,607)	(5,076)	16,805	11,318
Amounts reclassified from accumulated other comprehensive loss to:
Total	(416)	(4,366)	1,091	(7,911)
Other Comprehensive Income (Loss)	(2,023)	(9,442)	17,896	3,407
Gains and (Losses) on Derivative Instruments | Amounts reclassified from accumulated other comprehensive loss to:
Amounts reclassified from accumulated other comprehensive loss to:
Non-operating income	(614)	(4,834)	567	(8,617)
Interest expense	198	468	524	706
Foreign Currency Translation Adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax
Other comprehensive income (loss) before reclassifications	5,973	13,847	(7,929)	(38,353)
Amounts reclassified from accumulated other comprehensive loss to:
Total	0	0	0	0
Other Comprehensive Income (Loss)	5,973	13,847	(7,929)	(38,353)
Foreign Currency Translation Adjustments | Amounts reclassified from accumulated other comprehensive loss to:
Amounts reclassified from accumulated other comprehensive loss to:
Non-operating income	0	0	0	0
Interest expense	0	0	0	0
Accumulated Other Comprehensive Income (Loss)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax
Beginning equity balance	(233,889)	(295,018)	(239,906)	(255,667)
Amounts reclassified from accumulated other comprehensive loss to:
Ending equity balance	(229,960)	(290,613)	(229,960)	(290,613)
Gains and (Losses) on Derivative Instruments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax
Beginning equity balance	982	25,897	(18,937)	13,048
Amounts reclassified from accumulated other comprehensive loss to:
Ending equity balance	(1,062)	16,455	(1,062)	16,455
Foreign Currency Translation Adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax
Beginning equity balance	(234,871)	(320,915)	(220,969)	(268,715)
Amounts reclassified from accumulated other comprehensive loss to:
Ending equity balance	(228,898)	$ (307,068)	(228,898)	$ (307,068)
Gains and (Losses) on Derivative Instruments
Amounts reclassified from accumulated other comprehensive loss to:
Net current period other comprehensive income attributable to noncontrolling interests	(21)		(21)
Foreign Currency Translation Adjustments
Amounts reclassified from accumulated other comprehensive loss to:
Net current period other comprehensive income attributable to noncontrolling interests	0		0
AOCI Attributable to Noncontrolling Interest
Amounts reclassified from accumulated other comprehensive loss to:
Net current period other comprehensive income attributable to noncontrolling interests	$ (21)		$ (21)