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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Face (par) amount of debt instrument at time of issuance.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

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The effective interest rate at the end of the reporting period.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Borrowings and Credit Arrangements - Additional Information (Detail) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
	Jul. 15, 2025	Jun. 28, 2025	Jun. 29, 2024	Jun. 28, 2025	Jun. 29, 2024	Sep. 27, 2021
Interest Rate Swap
Debt Instrument [Line Items]
Proceeds from swap		$ 1.7	$ 2.4	$ 5.0	$ 14.4
Credit Agreement
Debt Instrument [Line Items]
Interest rate at end of period		5.42%	6.44%	5.42%	6.44%
Secured Term Loan \| 2021 Term Loan
Debt Instrument [Line Items]
Senior notes, face amount						$ 1,500.0
Amount outstanding		$ 1,170.0		$ 1,170.0
Secured Term Loan \| 2021 Term Loan \| Subsequent Event
Debt Instrument [Line Items]
Amount outstanding	$ 1,170.0
Secured Term Loan \| 2025 Term Loan \| Subsequent Event
Debt Instrument [Line Items]
Senior notes, face amount	$ 1,170.0
Variable rate	1.10%
Revolver \| 2021 Revolver
Debt Instrument [Line Items]
Revolving credit facility borrowings						$ 2,000.0
Revolver \| 2025 Revolver \| Subsequent Event
Debt Instrument [Line Items]
Revolving credit facility borrowings	$ 1,250.0
Commitment fee percentage	0.15%
Revolver \| 2025 Revolver \| Subsequent Event \| Maximum
Debt Instrument [Line Items]
Commitment fee percentage	0.20%
Senior Notes \| 2028 Senior Notes
Debt Instrument [Line Items]
Stated interest rate		4.625%		4.625%
Senior notes		$ 400.0		$ 400.0
Senior Notes \| 2029 Senior Notes
Debt Instrument [Line Items]
Stated interest rate		3.25%		3.25%
Senior notes		$ 950.0		$ 950.0