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Income Taxes - Deferred and Valuation Allowance (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Deferred tax assets    
Intellectual property $ 0 $ 68,567
Research tax credit 235,532 223,366
Capitalized research and development costs 34,425 29,317
Net operating loss carry forwards 321,004 315,444
Share-based compensation 17,314 16,417
Interest carry forward limitation 17,627 12,558
Lease liability 10,567 11,428
Inventory 1,931 10,400
Other 20,858 20,109
Gross deferred tax assets 659,258 707,606
Deferred tax liabilities    
Royalty payable 0 (68,567)
Other (10,004) (11,745)
Total net deferred tax assets 649,254 627,294
Less: valuation allowance (649,254) (632,233)
Net deferred tax liability $ 0 $ (4,939)