Income Taxes - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Taxes [Line Items]
Provision or benefit from income taxes	$ 141,000	$ 0	$ 0
Net operating loss carryforwards	307,300,000	246,200,000
Net operating loss and tax credit carryforwards	58,400,000
Unrecognized Tax Benefits	$ 0	0
Earliest Tax Year Member
Income Taxes [Line Items]
Net operating loss carryforwards, expiration year	2033
Tax credit carryforwards, expiration year	2033
Texas Margins Tax [Member]
Income Taxes [Line Items]
Provision or benefit from income taxes	$ 100,000
Tax Cuts And Jobs Act Of 2017 Member
Income Taxes [Line Items]
Increase in valuation primarily due to operation losses	16,900,000	20,700,000	$ 20,400,000
Domestic Country Member
Income Taxes [Line Items]
Tax credit carryforwards	18,600,000	14,800,000
State And Local Jurisdiction Member
Income Taxes [Line Items]
Tax credit carryforwards	$ 1,000,000.0	$ 800,000