Amount of contribution received by defined benefit plan from employer which increases plan assets.

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+ Details

Employee Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
Employee Benefits (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2023
Defined Contribution Plan Disclosure [Line Items]
Contributions and expenses	$ 3,469	$ 3,390	$ 2,992
Tranche 1
Defined Contribution Plan Disclosure [Line Items]
Employer percent match	100.00%
Percentage of employees' gross pay	3.00%
Tranche 2
Defined Contribution Plan Disclosure [Line Items]
Employer percent match	50.00%
Percentage of employees' gross pay	2.00%