Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2023
Property, Plant and Equipment [Line Items]
Carrying Amount	$ 310,278	$ 280,714
Accumulated Depreciation	(234,947)	(214,741)
Property and equipment, net	75,331	65,973
Depreciation	21,800	21,500	$ 22,100
Land
Property, Plant and Equipment [Line Items]
Carrying Amount	4	4
Accumulated Depreciation	0	0
Property and equipment, net	4	4
Buildings and improvements
Property, Plant and Equipment [Line Items]
Carrying Amount	164,984	145,001
Accumulated Depreciation	(117,228)	(105,337)
Property and equipment, net	47,756	39,664
Furniture and equipment
Property, Plant and Equipment [Line Items]
Carrying Amount	110,352	100,823
Accumulated Depreciation	(82,932)	(74,882)
Property and equipment, net	27,420	25,941
Software
Property, Plant and Equipment [Line Items]
Carrying Amount	34,938	34,886
Accumulated Depreciation	(34,787)	(34,522)
Property and equipment, net	$ 151	$ 364