Income Taxes - Provision For Income Tax Rate To Statutory Rate Reconciliation (Details)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Provision at statutory rate	21.00%	21.00%	35.00%
State taxes, net of federal benefit	2.50%	2.60%	1.90%
Foreign rate differential	0.30%	0.40%	(0.80%)
Domestic manufacturing deduction	0.00%	0.00%	(2.20%)
Foreign derived intangible income	(0.60%)	(1.20%)	0.00%
Research and development credit	(1.50%)	(1.10%)	(0.70%)
Unrecognized tax benefits including interest and penalties	0.10%	(0.60%)	2.30%
Valuation allowance adjustments	1.40%	0.10%	(0.10%)
State credits	(0.80%)	0.00%	0.00%
Deferred tax balance remeasurement for rate change	0.00%	(1.20%)	5.50%
Territorial tax	0	0.014	(0.001)
Global intangible low-taxed income	0.20%	0.40%	0.00%
Adjustments for previously accrued taxes	(0.30%)	(1.00%)	(1.20%)
Rate differential on intercompany transfers	0.00%	0.90%	0.00%
Executive compensation limitation	0.50%	0.50%	0.00%
Other foreign inclusions	0.80%	0.00%	0.00%
Other	0.40%	0.40%	0.00%
Provision for income taxes	24.00%	22.60%	39.60%