Annual report pursuant to Section 13 and 15(d)

Other Balance Sheet Components - Schedule of Property and Equipment, at cost (Details)

v3.22.2.2
Other Balance Sheet Components - Schedule of Property and Equipment, at cost (Details) - USD ($)
$ in Thousands
Sep. 30, 2022
Sep. 30, 2021
Property, Plant and Equipment [Line Items]    
Property and equipment, at cost $ 287,985 $ 347,759
Accumulated depreciation (235,727) (285,132)
Property and equipment, net 52,258 62,627
Land    
Property, Plant and Equipment [Line Items]    
Property and equipment, at cost 0 1,738
Building and improvements    
Property, Plant and Equipment [Line Items]    
Property and equipment, at cost 0 11,981
Office furniture and equipment    
Property, Plant and Equipment [Line Items]    
Property and equipment, at cost 209,258 254,102
Leasehold improvements    
Property, Plant and Equipment [Line Items]    
Property and equipment, at cost $ 78,727 $ 79,938