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Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Federal statutory rate	21.00%	21.00%	21.00%
Foreign operations, net	1.00%	0.20%	1.60%
R&D tax credits	(1.40%)	(0.60%)	(0.90%)
State taxes, net of federal benefit	3.10%	1.60%	2.40%
Stock-based compensation	(3.00%)	(1.30%)	(3.10%)
Tax Cuts and Jobs Act of 2017 - measurement period adjustments	0	0	(0.012)
Divestitures	0.00%	1.80%	0.00%
Foreign entity restructuring	0.00%	(1.80%)	0.00%
Other, net	0.80%	(0.30%)	1.40%
Effective income tax rate	21.50%	20.60%	21.20%

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- Definition

Effective Income Tax Rate Reconciliation, Deduction, Foreign Entity Restructuring, Percent

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to disposition of a business not qualifying as a discontinued operation.

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