v3.24.3
Basis of Presentation and Significant Accounting Policies - Summary of Property and Equipment Balances and Estimated Useful Lives (Details) - USD ($)
$ in Thousands
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2022
Property Plant And Equipment [Line Items]      
Total property and equipment, gross $ 1,151,690 $ 1,077,991  
Accumulated depreciation and amortization (881,818) (780,212)  
Total property and equipment, net 269,872 297,779 $ 297,876
Land      
Property Plant And Equipment [Line Items]      
Total property and equipment, gross 5,672 10,038  
Buildings and building improvements      
Property Plant And Equipment [Line Items]      
Total property and equipment, gross 45,564 56,688  
Leasehold improvements      
Property Plant And Equipment [Line Items]      
Total property and equipment, gross 317,976 280,626  
Furniture, fixtures and equipment      
Property Plant And Equipment [Line Items]      
Total property and equipment, gross $ 782,478 $ 730,639  
Minimum | Buildings and building improvements      
Property Plant And Equipment [Line Items]      
Estimated useful lives 5 years    
Minimum | Leasehold improvements      
Property Plant And Equipment [Line Items]      
Estimated useful lives 1 year    
Minimum | Furniture, fixtures and equipment      
Property Plant And Equipment [Line Items]      
Estimated useful lives 1 year    
Maximum | Buildings and building improvements      
Property Plant And Equipment [Line Items]      
Estimated useful lives 40 years    
Maximum | Leasehold improvements      
Property Plant And Equipment [Line Items]      
Estimated useful lives 12 years    
Maximum | Furniture, fixtures and equipment      
Property Plant And Equipment [Line Items]      
Estimated useful lives 10 years