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Business Combinations - Narrative (Details) - USD ($) $ in Thousands		12 Months Ended
	Sep. 26, 2025	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2023
Business Combination [Line Items]
Goodwill, Acquired During Period		$ 131,520	$ 23,684
CalypsoAI
Business Combination [Line Items]
Total Purchase Price	$ 145,200
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life	4 years 2 months 15 days
Other Fiscal Year 2025 Acquisitions
Business Combination [Line Items]
Goodwill, Acquired During Period		$ 17,400
Fiscal Year 2024 Acquisitions
Business Combination [Line Items]
Goodwill, Acquired During Period			$ 23,600
Lilac Cloud, Inc.
Business Combination [Line Items]
Goodwill, Acquired During Period				$ 29,400

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