Income Taxes - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Taxes [Line Items]
Increase in valuation allowance	$ 99,500,000	$ 96,600,000
Maturity period for NOLs carryovers	20 years
U.S. federal NOLs	$ 576,200,000
Unrecognized tax benefits	6,915,000	3,489,000	$ 2,052,000	$ 1,260,000
Uncertain tax positions	3,426,000	1,437,000	$ 792,000
Accrued interest or penalties related to uncertain tax positions	0	$ 0
Domestic Tax Authority [Member]
Income Taxes [Line Items]
U.S. federal NOLs	192,500,000
U.S. federal tax credits	$ 33,600,000
Tax credit carryforwards expiration year	2028
NOLs expiration year	2028