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Property And Equipment, Net (Tables)
3 Months Ended
Dec. 31, 2021
Property, Plant and Equipment [Abstract]  
Schedule of property, plant and equipment
Table 13: Details of Property and Equipment, Net
December 31, 2021September 30, 2021
(in thousands)
Land$— $1,738 
Building and improvements— 11,981 
Office furniture and equipment245,110 254,102 
Leasehold improvements79,613 79,938 
Property and equipment, at cost324,723 347,759 
Accumulated depreciation(271,096)(285,132)
Property and equipment, net$53,627 $62,627