Goodwill and Other Intangibles, Net - Summary of Goodwill (Detail) - USD ($) $ in Thousands  | 
12 Months Ended | |
|---|---|---|
Sep. 30, 2023  | 
Oct. 01, 2022  | 
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| Goodwill [Roll Forward] | ||
| Beginning Balance | $ 173,513 | $ 101,114 | 
| Acquisitions, net of measurement period adjustments | 7,185 | 72,399 | 
| Ending Balance | $ 180,698 | $ 173,513 | 
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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/exampleRef 
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. Reference 1: http://www.xbrl.org/2003/role/exampleRef 
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available. 
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