Income Taxes - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Operating Loss Carryforwards [Line Items]
Number of consecutive years with cumulative pre-tax loss	3 years
Valuation allowance for deferred tax assets credited to contributed capital	$ 354
Increase in valuation allowance	23,356	$ 10,366
Federal
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	451,010
Operating loss carryforwards, not subject to expiration	96,949
Federal | Research Tax Credit Carryforward
Operating Loss Carryforwards [Line Items]
Tax credit carryforward	6,700
State
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	321,735
Operating loss carryforwards, not subject to expiration	$ 21,799