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Fair Value Measurements - Available for Sale Debt Securities (Details) - USD ($) $ in Millions	Dec. 28, 2024	Sep. 28, 2024
Fair Value Disclosures [Abstract]
Due in three months or less	$ 168.1	$ 723.1
Due after three months through one year	190.6	173.4
Due after one year through five years	47.9	96.4
Total available-for-sale securities	$ 406.6	$ 992.9

X

- Definition

Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, After Three Months Through One Year

+ References

No definition available.

+ Details

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X

- Definition

Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Due in Three Months or Less

+ References

No definition available.

+ Details

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X

- Definition

Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-3

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 320
-Name Accounting Standards Codification
-Section 50
-Paragraph 3A
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477268/942-320-50-3A

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X

- Definition

Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479130/326-30-45-1

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- References

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