Income Taxes (Tables)

9 Months Ended

Sep. 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 September 30, 2020 and 2019 due to the following (in thousands):

	2020				2019
Computed “expected” tax expense	$	49,436	21.0	%	$	61,479	21.0	%
Changes resulting from:
Foreign income tax differential	(3,364)		(1.4)	%	(2,904)		(1.0)	%
Excess tax benefit related to stock-based compensation	(13,449)		(5.7)	%	(10,059)		(3.4)	%
State taxes net of federal benefits	786		0.3	%	3,324		1.1	%
Foreign-sourced nontaxable income	2,416		1.0	%	(1)		—	%
Foreign withholding	3,764		1.6	%	5,150		1.8	%
GILTI, net of foreign tax credits	2,341		1.0	%	2,486		0.9	%
Other	4,663		2.0	%	7,477		2.5	%
Provision for income taxes	$	46,593	19.8	%	$	66,952	22.9	%