Quarterly report pursuant to Section 13 or 15(d)

Property And Equipment, Net (Details)

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Property And Equipment, Net (Details)
$ in Thousands
Dec. 31, 2021
USD ($)
building
Sep. 30, 2021
USD ($)
Property, Plant and Equipment [Line Items]    
Property and equipment, at cost $ 324,723 $ 347,759
Accumulated depreciation (271,096) (285,132)
Property and equipment, net $ 53,627 62,627
Number of buildings classified as held for sale | building 1  
Prepaid Expenses and Other Current Assets | Building    
Property, Plant and Equipment [Line Items]    
Property and equipment, net $ 5,400  
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 245,110 254,102
Leasehold improvements    
Property, Plant and Equipment [Line Items]    
Property and equipment, at cost $ 79,613 $ 79,938