Income Taxes - Summary of Deferred Tax Asset Valuation Allowance (Detail) - Valuation Allowance of Deferred Tax Assets - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2019
Valuation And Qualifying Accounts Disclosure [Line Items]
Beginning balance		$ 632
Additions charged to cost and expenses	$ 36
Deductions		$ (632)
Ending balance	$ 36