Income Taxes - Effective Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Statutory rate	$ (33,030)	$ (25,518)
State taxes, net of federal benefit	(4,995)	(6,637)
Permanent adjustments	(560)	411
Return to provision	10	0
Other deferred adjustment	5,147	(4)
General business credits	3,599	(8,803)
Change in valuation allowance	29,835	40,556
Total tax expense	$ 6	$ 5

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.

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The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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Effective Income Tax Rate Reconciliation, Return To Provision

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