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PA Consulting Redeemable Noncontrolling Interests - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended |
--- | --- | ---
Dec. 27, 2024 | Dec. 29, 2023 | Sep. 27, 2024
Business Acquisition [Line Items] |  |  |
Repurchase of redeemable noncontrolling interests | $ 3,729 | $ 24,360 |
Preference share effect on basic earnings per share (in dollars per share) | $ 0.04 | $ 0.01 |
PA Consulting Group Limited |  |  |
Business Acquisition [Line Items] |  |  |
Allocated share-based compensation expense | $ 5,900 | $ 1,600 |
Cash in employee benefit trust | $ 800 |  | $ 2,100
PA Consulting Employees |  |  |
Business Acquisition [Line Items] |  |  |
Ownership interest of employees | 70.00% |  | 70.00%

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