Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Taxes [Line Items]
Deferred tax asset	$ 0	$ 0
Valuation allowances increased	23,600	18,500	$ 8,500
Liability related to uncertain tax positions	0
Interest or penalties accrued	$ 0	0	$ 0
Earliest Tax Year | California State Tax Examinations
Income Taxes [Line Items]
Open tax year	2013
Latest Tax Year | California State Tax Examinations
Income Taxes [Line Items]
Open tax year	2021
U.S. Federal
Income Taxes [Line Items]
Operating loss carryforwards	$ 207,900
Operating loss carryforwards, not subject to expiration	192,000
Operating loss carryforwards, subject to expiration	$ 15,800
Operating loss carryforwards begin to expire	2034
Tax credit carryforwards	$ 8,000
Tax credits carryforwards begin to expire	2036
U.S. Federal | Earliest Tax Year
Income Taxes [Line Items]
Open tax year	2013
U.S. Federal | Latest Tax Year
Income Taxes [Line Items]
Open tax year	2021
State
Income Taxes [Line Items]
Operating loss carryforwards	$ 16,300
Operating loss carryforwards begin to expire	2034
Tax credit carryforwards	$ 2,300
Foreign Tax Authority [Member]
Income Taxes [Line Items]
Operating loss carryforwards	$ 600	$ 0
Internal Revenue Code
Income Taxes [Line Items]
Period of cumulative change in ownership	3 years
Minimum | Internal Revenue Code
Income Taxes [Line Items]
Cumulative change in ownership percentage	50.00%