Commitments and Contingencies - Employee Benefit Plans, Letters of Credit, and Non-Income Related Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Mar. 31, 2020
Other Commitments [Line Items]
Employer matching contributions	$ 3.7	$ 3.1	$ 3.2
Letters of credit outstanding	0.8
Estimated sales tax liability, including interest, minimum				$ 2.5
Estimated sales tax liability, including interest, maximum				6.3
Accrued sales tax, including interest	$ 0.8			$ 2.5
Match Step One
Other Commitments [Line Items]
Employer matching contribution, percent of match	100.00%
Employer matching contribution percent of eligible compensation	3.00%
Match Step Two
Other Commitments [Line Items]
Employer matching contribution, percent of match	50.00%
Employer matching contribution percent of eligible compensation	2.00%