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Income Taxes - Schedule of Reconciliation of Income Tax (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Income Tax Expense (Benefit) |  |  |
U.S. federal taxes at statutory rate | $ (6,412) |  |
State and local income tax, net of federal (national) income tax effect | 190 |  |
Total | (828) |  |
Tax credits |  |  |
Federal R&D Credit | (15,562) |  |
Total | (15,562) |  |
Changes in valuation allowances | 195,140 |  |
Nontaxable or nondeductible items |  |  |
Meals and Entertainment | 1,993 |  |
Prepaid marketing expense | (2,935) |  |
Other | (215) |  |
Total | (171,278) |  |
Provision for income taxes | $ 1,250 | $ 2,462 | $ 1,192
Income Tax Rate |  |  |
U.S. federal taxes at statutory rate | 21.00% | 21.00% | 21.00%
State and local income tax, net of federal (national) income tax effect | (0.60%) | 7.60% | 4.30%
Stock Based Compensation |  | 57.30% | 1.60%
Other |  | (2.70%) | 0.00%
Foreign rate differential | 2.70% | 0.10% | 0.00%
Tax credits |  |  |
Federal R&D Credit | 51.00% |  |
Permanent items |  | (2.40%) | (0.40%)
Total | 51.00% |  |
Changes in valuation allowances | (639.10%) | 126.00% | (32.90%)
Nontaxable or nondeductible items |  |  |
Meals and Entertainment | (6.50%) |  |
Non-deductible officers compensation |  | (32.20%) | (2.30%)
Prepaid marketing expense | 9.60% | 3.20% | 3.60%
Other | 0.70% |  |
Total | 561.00% |  |
Total | (4.10%) | (5.60%) | (0.40%)
United Kingdom |  |  |
Income Tax Expense (Benefit) |  |  |
Stock Based Compensation | $ (701) |  |
Other foreign adjustments | $ 128 |  |
Income Tax Rate |  |  |
Stock Based Compensation | 2.30% |  |
Other | (0.40%) |  |
Australia |  |  |
Income Tax Expense (Benefit) |  |  |
Stock Based Compensation | $ (312) |  |
Other foreign adjustments | $ 60 |  |
Income Tax Rate |  |  |
Stock Based Compensation | 1.00% |  |
Other | (0.20%) |  |
Other foreign jurisdictions |  |  |
Income Tax Expense (Benefit) |  |  |
Total | $ (3) |  |
United States |  |  |
Income Tax Expense (Benefit) |  |  |
Stock Based Compensation | $ (170,121) |  |
Income Tax Rate |  |  |
Stock Based Compensation | 557.20% |  |
Tax credits |  |  |
Federal R&D Credit |  | 48.30% | 3.80%
State and Local Tax Jurisdiction, Other |  |  |
Tax credits |  |  |
Federal R&D Credit |  | 20.20% | 0.90%

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