Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2022
Property, Plant and Equipment [Line Items]
Carrying Amount	$ 280,714	$ 345,461
Accumulated Depreciation	(214,741)	(277,365)
Property and equipment, net	65,973	68,096
Depreciation	21,500	22,100	$ 20,400
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	145,001	146,687
Accumulated Depreciation	(105,337)	(109,710)
Property and equipment, net	39,664	36,977
Furniture and equipment
Property, Plant and Equipment [Line Items]
Carrying Amount	100,823	164,818
Accumulated Depreciation	(74,882)	(133,870)
Property and equipment, net	25,941	30,948
Software
Property, Plant and Equipment [Line Items]
Carrying Amount	34,886	33,952
Accumulated Depreciation	(34,522)	(33,785)
Property and equipment, net	$ 364	$ 167