Income Taxes - Components of Effective Income Tax Rate (Details)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
U.S. federal statutory income tax rate	21.00%	21.00%	21.00%
Reserves for uncertain tax positions, net	6.20%	(0.20%)	0.10%
Stock-based compensation	5.20%	0.00%	(0.20%)
State taxes, net of federal benefit	1.60%	2.10%	1.80%
Nondeductible warrants	(3.50%)	(0.50%)	0.00%
Impact of CARES Act	0.00%	16.90%	0.00%
Other	(1.30%)	0.20%	0.10%
Effective income tax rate	29.20%	39.50%	22.80%