Fair Value Measurements - Assumptions (Details)	Dec. 31, 2024 Y $ / shares	Sep. 30, 2024 Y $ / shares
Term
Fair value inputs
Debt inputs | Y	0.5	0.8
Warrant inputs | Y	4.2	4.5
Volatility
Fair value inputs
Debt inputs	1.34	0.91
Warrant inputs	1.355	1.25
Risk-free rate
Fair value inputs
Debt inputs	0.042	0.042
Warrant inputs	0.0434	0.0358
Dividend yield
Fair value inputs
Debt inputs	0	0
Warrant inputs	0	0
Credit-adjusted discount rate
Fair value inputs
Debt inputs	0.205	0.204
Stock price (in dollars per share)
Fair value inputs
Debt inputs | $ / shares	1.89	5.34
Warrant inputs | $ / shares	1.89	5.34