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Goodwill and Intangibles - Schedule of Carrying Value of Goodwill by Reportable Segment Appearing in Accompanying Consolidated Balance Sheets (Details) $ in Thousands | 9 Months Ended
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Jul. 01, 2022 USD ($)
Goodwill [Roll Forward] |
Balance at the beginning of the period | $ 7,197,000
Acquired | 335,219
Foreign currency translation | (209,555)
Post-Acquisition Adjustments | 5,720
Balance at the end of the period | 7,328,384
Critical Mission Solutions |
Goodwill [Roll Forward] |
Balance at the beginning of the period | 2,550,631
Acquired | 197,227
Foreign currency translation | (18,043)
Post-Acquisition Adjustments | 0
Balance at the end of the period | 2,729,815
People & Places Solutions |
Goodwill [Roll Forward] |
Balance at the beginning of the period | 3,240,783
Acquired | 116,657
Foreign currency translation | (29,688)
Post-Acquisition Adjustments | 0
Balance at the end of the period | 3,327,752
PA Consulting |
Goodwill [Roll Forward] |
Balance at the beginning of the period | 1,405,586
Acquired | 21,335
Foreign currency translation | (161,824)
Post-Acquisition Adjustments | 5,720
Balance at the end of the period | $ 1,270,817

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