Income Taxes (Tables)

6 Months Ended

Jun. 30, 2020

Income Tax Disclosure [Abstract]

Summary of Provision for Income Taxes and U.S. Federal Tax Rate

The provision for income taxes differs from amounts computed by applying the U.S. federal tax rate of 21% for 2020 and 2019 to income before income taxes for the three months ended June 30, 2020 and 2019 due to the following (in thousands):

	2020				2019
Computed “expected” tax expense	$	44,443	21.0	%	$	54,025	21.0	%
Changes resulting from:
Foreign income tax differential	(4,155)		(2.0)	%	(3,185)		(1.2)	%
Excess tax benefit related to stock-based compensation	(12,720)		(6.0)	%	(8,097)		(3.2)	%
State taxes net of federal benefits	3,902		1.8	%	2,982		1.2	%
Foreign-sourced nontaxable income	13		—	%	145		0.1	%
Foreign withholding	3,515		1.7	%	5,098		1.9	%
GILTI, net of foreign tax credits	2,402		1.1	%	3,284		1.3	%
Change in valuation allowance and remeasurement of related deferred tax asset	—		—	%	(64,880)		(25.2)	%
Change in taxes for federal uncertain tax positions	12,261		5.8	%	155		0.1	%
Other	3,479		1.7	%	6,082		2.3	%
Provision for (benefit from) income taxes	$	53,140	25.1	%	$	(4,391)	(1.7)	%