Income Taxes - Summary of Provision for Income Taxes and U.S. Federal Tax Rate (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount [Abstract]
Computed “expected” tax expense	$ 49,493	$ 36,182
Foreign income tax differential	(3,830)	(8,112)
Foreign withholding tax credit	0	(7,651)
Excess tax benefit related to stock-based compensation	(9,413)	(17,098)
State taxes net of federal benefits	2,685	774
Increase in tax expense due to uncertain tax positions	2,412	1,770
Sub-part F Income	1,326	2,260
Foreign withholding	3,643	4,585
GILTI, net of foreign tax credits	2,992	2,426
Change in valuation allowance and remeasurement of related deferred tax asset	0	7,651
Other	2,133	2,452
Provision for income taxes	$ 51,441	$ 25,239
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Computed “expected” tax expense	21.00%	21.00%
Foreign income tax differential	(1.60%)	(4.70%)
Foreign withholding tax credit	0.00%	(4.40%)
Excess tax benefit related to stock-based compensation	(4.00%)	(9.90%)
State taxes net of federal benefits	1.10%	0.40%
Increase in tax expense due to uncertain tax positions	1.00%	1.00%
Sub-part F Income	0.60%	1.30%
Foreign withholding	1.50%	2.70%
GILTI, net of foreign tax credits	1.30%	1.40%
Change in valuation allowance and remeasurement of related deferred tax asset	0.00%	4.40%
Other	0.90%	1.40%
Provision for income taxes	21.80%	14.60%