Income Taxes - Schedule of Difference Between Effective and Statutory (Details)	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
U.S. federal income tax rate	21.00%	21.00%	21.00%
State taxes	1.00%	1.00%	1.20%
Stock-based compensation	(0.60%)	0.30%	1.00%
U.S. federal, state and foreign research and development credits	(4.40%)	(6.00%)	(7.60%)
Foreign earnings	(7.70%)	(6.10%)	(6.00%)
Nondeductible (nontaxable) foreign items	(0.40%)	0.70%	0.40%
Impact of U.S. Tax Cuts and Jobs Act, net	0	0	(0.008)
Release of uncertain tax position reserve	(0.90%)	(5.90%)	(1.90%)
Intercompany sale of intellectual property	0.20%	1.90%	3.30%
Valuation allowance	1.10%	4.20%	0.80%
Other	(1.80%)	(1.10%)	1.60%
Effective income tax rate	7.50%	10.00%	13.00%

Effective Income Tax Rate Reconciliation, Intercompany Sale of Intellectual Property, Percent

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Effective Income Tax Rate Reconciliation, Release of Uncertain Tax Position Reserve

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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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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section S99
-Paragraph 1
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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 changes in the valuation allowance for deferred tax assets.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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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 applicable to statutory income tax expense (benefit) outside of the country of domicile.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to nondeductible expense for share-based payment arrangement.

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Percentage of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations, attributable to Tax Cuts and Jobs Act.

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