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Income Taxes (Details 4) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Components of net deferred tax assets (liabilities)    
Depreciation and amortization $ 0 $ 3,247
Lease liabilities 6,607 7,691
Other timing differences, accruals and reserves 5,306 10,393
Deferred equity compensation 3,973 4,366
Net operating loss carryovers 14,578 13,423
Capitalized research 77,244 49,649
Tax credits 50,445 96,758
Total gross deferred tax assets 158,153 185,527
Lease right-of-use assets (4,589) (5,501)
Deferred revenue 0 (76)
Depreciation and amortization (5,078) 0
Total gross deferred tax liabilities (9,667) (5,577)
Total net deferred tax assets before valuation allowance 148,486 179,950
Valuation allowance (25,056) (201,883)
Net deferred tax assets (liabilities) $ 123,430  
Net deferred tax assets (liabilities)   $ (21,933)