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Significant Accounting Policies - Narrative (Details) |  | 12 Months Ended
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Mar. 02, 2021 | Sep. 30, 2022
PA Consulting Employees |  |
Significant Accounting Policies [Line Items] |  |
Ownership interest of employees | 35.00% |
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
Minimum | Buildings |  |
Significant Accounting Policies [Line Items] |  |
Estimated useful life of assets |  | 20 years
Minimum | Equipment |  |
Significant Accounting Policies [Line Items] |  |
Estimated useful life of assets |  | 3 years
Minimum | Leasehold improvements |  |
Significant Accounting Policies [Line Items] |  |
Estimated useful life of assets |  | 4 years
Maximum |  |
Significant Accounting Policies [Line Items] |  |
Term of lease contract |  | 13 years
Maximum | Buildings |  |
Significant Accounting Policies [Line Items] |  |
Estimated useful life of assets |  | 40 years
Maximum | Equipment |  |
Significant Accounting Policies [Line Items] |  |
Estimated useful life of assets |  | 10 years
Maximum | Leasehold improvements |  |
Significant Accounting Policies [Line Items] |  |
Estimated useful life of assets |  | 10 years

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