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EMPLOYEE STOCK PLANS - Share-based Compensation Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 03, 2025	Sep. 27, 2024	Sep. 29, 2023
Share-based Payment Arrangement, Expensed and Capitalized, Amount
Total share-based compensation expense	$ 15.0	$ 15.3	$ 13.5
Cost of revenues
Share-based Payment Arrangement, Expensed and Capitalized, Amount
Total share-based compensation expense	2.0	1.8	1.7
Research and development
Share-based Payment Arrangement, Expensed and Capitalized, Amount
Total share-based compensation expense	3.2	3.4	3.3
Selling, general, and administrative
Share-based Payment Arrangement, Expensed and Capitalized, Amount
Total share-based compensation expense	$ 9.8	$ 10.1	$ 8.5

X

- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section S45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479983/718-10-S45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479830/718-10-S99-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-Name Accounting Standards Codification
-Section 50
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-Subparagraph (h)(1)
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