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Income Taxes - Schedule of Deferred Tax Assets (Detail) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Deferred tax assets:    
Net operating loss carryforwards $ 111,741 $ 74,023
Accruals, reserve and other 2,255 1,588
Tax credit carryforwards 16,838 11,727
Stock-based compensation 9,741 5,975
Intangibles 1,613 18
Lease obligation 24,224 6,630
Capital losses 9,850 1
Other 17 1
Total deferred tax assets before valuation allowance 176,279 99,963
Valuation allowance (154,672) (94,645)
Total deferred tax assets 21,607 5,318
Deferred tax liabilities:    
Right-of-use assets (20,227) (4,183)
Property and equipment (1,380) (1,135)
Total deferred tax liabilities (21,607) (5,318)
Net deferred tax assets $ 0 $ 0