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FAIR VALUE - Schedule of Balance Sheet Marketable Securities (Details) - USD ($) $ in Millions	Dec. 29, 2023	Sep. 29, 2023
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value
Total marketable debt securities	$ 60.5	$ 49.5
Cash and cash equivalents
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value
Total marketable debt securities	8.3	8.2
Prepaid expenses and other current assets
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value
Total marketable debt securities	52.2	41.3
Commercial paper
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value
Total marketable debt securities	8.3	6.0
Commercial paper | Cash and cash equivalents
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value
Total marketable debt securities	8.3	6.0
Commercial paper | Prepaid expenses and other current assets
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value
Total marketable debt securities	0.0	0.0
Corporate notes/bonds
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value
Total marketable debt securities	10.3	8.3
Corporate notes/bonds | Cash and cash equivalents
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value
Total marketable debt securities	0.0	0.0
Corporate notes/bonds | Prepaid expenses and other current assets
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value
Total marketable debt securities	10.3	8.3
Government agencies
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value
Total marketable debt securities	20.1	6.6
Government agencies | Cash and cash equivalents
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value
Total marketable debt securities	0.0	0.0
Government agencies | Prepaid expenses and other current assets
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value
Total marketable debt securities	20.1	6.6
U.S. Treasury bills
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value
Total marketable debt securities	21.8	28.6
U.S. Treasury bills | Cash and cash equivalents
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value
Total marketable debt securities	0.0	2.2
U.S. Treasury bills | Prepaid expenses and other current assets
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value
Total marketable debt securities	$ 21.8	$ 26.4

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2E
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2E

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Amount of investment in marketable security.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(2))
-Publisher FASB
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1

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