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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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The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.

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