Debt Covenant, Specified Maximum Leverage Ratio

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- Definition

Debt Instrument, Extension Period

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- Definition

Debt Instrument, Number of One Year Agreement Extensions

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- Definition

Debt Instrument, Post-repayment Date Interest Rate, Percent

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- Definition

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

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

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.

+ References

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- Definition

Amount of the required periodic payments applied to principal.

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- Definition

Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

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- Definition

Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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- Definition

The cash inflow from amounts received from issuance of long-term debt that is wholly or partially secured by collateral. Excludes proceeds from tax exempt secured debt.

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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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Indebtedness (Narrative) (Details)		12 Months Ended
Indebtedness (Narrative) (Details)	Jul. 08, 2019 USD ($) extnsion_option	Sep. 27, 2020 USD ($)	Sep. 29, 2019 USD ($)	Sep. 30, 2018 USD ($)	Apr. 12, 2020 USD ($)
Debt Instrument [Line Items]
Loss on extinguishment of debt		$ 0	$ 2,757,000	$ 0
Securitization Transaction
Debt Instrument [Line Items]
Deferred financing costs	$ 33,000,000.0
Senior Notes \| Class A-2-I Notes
Debt Instrument [Line Items]
Proceeds from issuance of secured debt	$ 575,000,000.0
Interest rate	3.982%
Senior secured notes		$ 570,688,000	575,000,000
Effective interest rate		4.544%
Senior Notes \| Class A-2-II Notes
Debt Instrument [Line Items]
Proceeds from issuance of secured debt	$ 275,000,000.0
Interest rate	4.476%
Senior secured notes		$ 272,938,000	275,000,000
Effective interest rate		4.80%
Senior Notes \| Class A-2-III Notes
Debt Instrument [Line Items]
Proceeds from issuance of secured debt	$ 450,000,000.0
Interest rate	4.97%
Senior secured notes		$ 446,625,000	450,000,000
Effective interest rate		5.197%
Senior Notes \| Class A-2 Notes
Debt Instrument [Line Items]
Principal amount	$ 150,000,000.0
Quarterly principal payment		$ 3,250,000
Specified maximum leverage ratio	5.0	5.0
Number of extensions for variable funding notes \| extnsion_option	2
Interest rate after repayment date	5.00%
Length of extension period	1 year
Letters of credit outstanding, amount		$ 39,500,000	$ 45,600,000
Senior secured notes		107,900,000			$ 107,900,000
Unused borrowing capacity		2,700,000
Senior Notes \| Maximum \| Class A-2 Notes
Debt Instrument [Line Items]
Scaled commitment fee (percent)	1000.00%
Senior Notes \| Minimum \| Class A-2 Notes
Debt Instrument [Line Items]
Scaled commitment fee (percent)	500.00%
Interest expense, net
Debt Instrument [Line Items]
Loss on extinguishment of debt		$ 2,800,000