Debt, Finance Lease Obligations and Other Financing - Schedule of Debt, Finance Lease Obligations and Other Financing (Details) - USD ($) $ in Thousands	Jul. 04, 2020	Sep. 29, 2019	Sep. 28, 2019
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 288,000		$ 245,000
Finance lease and other financing obligations	48,497		44,492
Unamortized deferred financing fees	(1,878)		(1,512)
Total obligations	334,619		287,980
Long-term debt and finance lease obligations, net of current portion	188,626	$ 187,071	187,278
Current portion of long-term debt and finance lease obligations	(145,993)		(100,702)
Unsecured Debt \| Term Loans, due April 28, 2021
Debt Instrument [Line Items]
Short-term Debt, Gross	138,000		0
Senior Notes
Debt Instrument [Line Items]
Long-term Debt, Gross	150,000		150,000
Senior Notes \| 4.05% Senior Notes, due June 15, 2025
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 100,000		$ 100,000
Interest Rate, Senior Notes	4.05%		4.05%
Senior Notes \| 4.22% Senior Notes, due June 15, 2028
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 50,000		$ 50,000
Interest Rate, Senior Notes	4.22%		4.22%
Line of Credit \| Borrowings under the credit facility
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 0		$ 95,000

Finance Lease Obligations

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- Definition

Long-Term Debt and Finance Lease Obligations

+ References

No definition available.

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- Definition

Long-Term Debt and Finance Lease Obligations, Current

+ References

No definition available.

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- Definition

Long-term Debt and Finance Lease Obligations, Including Current Maturities

+ References

No definition available.

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 210
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-Section S99
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-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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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

No definition available.

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- Definition

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

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- Definition

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

+ 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
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-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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