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Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Income Tax Disclosure [Abstract]      
Federal statutory rate 21.00% 35.00% 35.00%
Foreign rate differential 0.30% (2.60%) (3.20%)
R&D tax credits (0.90%) (0.80%) (0.70%)
State taxes, net of federal benefit 2.40% 1.90% 1.90%
Section 199 deduction (0.00%) (1.30%) (1.50%)
Stock-based compensation (3.10%) (3.90%) (1.60%)
Tax Cuts and Jobs Act of 2017 - enactment date and measurement period adjustments (1.20%) (20.80%) 0.00%
Global intangible low taxed income (GILTI) inclusion 1.10% 0.00% 0.00%
Foreign-derived intangible income (FDII) deduction (1.20%) (0.00%) (0.00%)
Tax on planned remittances of foreign earnings 1.30% 0.00% 0.00%
Other, net 1.50% (1.40%) 0.10%
Effective income tax rate 21.20% 6.10% 30.00%