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Income Taxes - Income Taxes Effect of Each Type of Temporary Difference Comprising Net Differed Tax Asset (Detail) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Deferred tax assets:    
Net operating losses $ 166,405 $ 154,086
Stock-based compensation 12,451 9,929
Tax credits 2,421 2,409
Lease liability 1,837 1,971
Other reserves and accrued liabilities 8,808 7,916
Gross deferred tax assets 191,922 176,311
Less: valuation allowance (187,562) (171,793)
Total deferred tax assets 4,360 4,518
Deferred tax liabilities:    
Depreciation and amortization (2,985) (3,050)
Lease asset (1,375) (1,468)
Total deferred tax liabilities (4,360) (4,518)
Net deferred tax assets $ 0 $ 0