Common Stock - Narrative (Details) shares in Thousands	12 Months Ended
	Sep. 30, 2025 vote $ / shares shares	Feb. 28, 2025 $ / shares shares	Sep. 30, 2024 $ / shares shares
Equity [Abstract]
Common stock, par value (in dollars per share) | $ / shares	$ 0.00001	$ 0.00001	$ 0.00001
Number of votes per share | vote	1
Increase in authorized common stock (in shares) | shares	200,000	200,000	100,000