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Fair Value Measurements - Additional Information (Details) - USD ($) shares in Millions, $ in Millions |  | 9 Months Ended
--- | --- | ---
Feb. 14, 2025 | Sep. 30, 2025 | Sep. 30, 2024
Simple Agreements for Future Equity [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Conversion amount | $ 177.6 |  |
Percentage of weighted probability | 9.00% |  |
Simple Agreements for Future Equity [Member] | Common Stock [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Debt outstanding converted to common stock | 16.6 |  |
Customer Rewards Liability [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Forfeiture rates on trailing duration |  | 3 years |
Percentage of estimated forfeiture rate |  | 10.00% | 10.00%

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