XML 72 R50.htm IDEA: XBRL DOCUMENT v3.23.3
Significant Accounting Policies - Narrative (Details)
Mar. 02, 2021
Sep. 29, 2023
Sep. 30, 2022
PA Consulting Employees      
Significant Accounting Policies [Line Items]      
Ownership interest of employees 35.00% 69.00% 65.00%
Preferred stock cumulative dividend rate 12.00%    
Preferred stock redemption period 5 years    
Minimum      
Significant Accounting Policies [Line Items]      
Term of lease contract   1 year  
Maximum      
Significant Accounting Policies [Line Items]      
Term of lease contract   20 years  
Buildings | Minimum      
Significant Accounting Policies [Line Items]      
Estimated useful life of assets   20 years  
Buildings | Maximum      
Significant Accounting Policies [Line Items]      
Estimated useful life of assets   40 years  
Equipment | Minimum      
Significant Accounting Policies [Line Items]      
Estimated useful life of assets   3 years  
Equipment | Maximum      
Significant Accounting Policies [Line Items]      
Estimated useful life of assets   10 years  
Leasehold improvements | Minimum      
Significant Accounting Policies [Line Items]      
Estimated useful life of assets   2 years  
Leasehold improvements | Maximum      
Significant Accounting Policies [Line Items]      
Estimated useful life of assets   20 years