Retirement Plan (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2023
Retirement Benefits [Abstract]
Minimum age of employee for 401(k) retirement plan	21 years
Matching contributions percentage	50.00%
Percentage of employee salary deferrals	4.00%
Discretionary contribution amount	$ 2.9	$ 2.7	$ 2.6