Property and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Sep. 30, 2019
Property, Plant and Equipment [Line Items]
Carrying Amount	$ 267,509	$ 265,922
Accumulated Depreciation	(210,523)	(198,565)
Net Book Value	56,986	67,357
Land
Property, Plant and Equipment [Line Items]
Carrying Amount	4	4
Accumulated Depreciation	0	0
Net Book Value	4	4
Buildings and improvements
Property, Plant and Equipment [Line Items]
Carrying Amount	105,137	103,486
Accumulated Depreciation	(75,445)	(68,895)
Net Book Value	29,692	34,591
Furniture and equipment
Property, Plant and Equipment [Line Items]
Carrying Amount	127,793	127,531
Accumulated Depreciation	(101,888)	(96,142)
Net Book Value	25,905	31,389
Software
Property, Plant and Equipment [Line Items]
Carrying Amount	33,729	34,245
Accumulated Depreciation	(33,190)	(33,528)
Net Book Value	539	717
Construction in progress
Property, Plant and Equipment [Line Items]
Carrying Amount	846	656
Accumulated Depreciation	0	0
Net Book Value	$ 846	$ 656