Retirement Plans - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
Oct. 03, 2021	Sep. 27, 2020	Sep. 29, 2019
Retirement Benefits [Abstract]
Employer contributions to the plans	$ 26.9	$ 25.0	$ 23.3
Assets related to deferred compensation plans	41.4	35.1
Liabilities related to deferred compensation plans	$ 41.1	$ 35.0
Maximum age pension plan was open for new entrants	24 years

Defined Benefit Plan, Pension Plan Open for New Entrants, Maximum Age

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- References

No definition available.

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- Definition

Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements payable beyond one year (or the operating cycle, if longer).

+ References

No definition available.

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- Definition

Carrying amount as of the balance sheet date of assets held under deferred compensation agreements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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- Definition

Amount of cost for defined contribution plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942

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