Income Taxes - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2017
Tax Credit Carryforward [Line Items]
Valuation allowance	$ 56,551	$ 41,922
Increase (decrease) in deferred tax asset valuation allowance	14,600	13,000
Write off of net operating losses			$ 3,100
Write off of tax credits			1,200
Unrecognized tax benefits	8,489	$ 8,248	$ 989
Federal
Tax Credit Carryforward [Line Items]
Net operating loss carryforwards	181,500			$ 71,900
Federal | Tax Year 2018
Tax Credit Carryforward [Line Items]
Net operating loss carryforwards	109,700
State
Tax Credit Carryforward [Line Items]
Net operating loss carryforwards	325,500
Research and Development | Federal
Tax Credit Carryforward [Line Items]
Tax credit carryforward	3,000
Research and Development | State
Tax Credit Carryforward [Line Items]
Tax credit carryforward	$ 4,500