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Long-term Debt - Schedule of Long-term Debt (Details) - USD ($) $ in Thousands	9 Months Ended
	Jun. 29, 2018	Jun. 30, 2017	Sep. 29, 2017
Debt Instrument [Line Items]
Less: Deferred Financing Fees	$ (5,409)		$ 0
Other	3,066		0
Total Long-term debt, net	2,336,473		235,000
Term Loan Facility
Debt Instrument [Line Items]
Total Long-term debt, net	1,500,000		0
Senior Notes, Series A
Debt Instrument [Line Items]
Total Long-term debt, net	$ 190,000		0
Interest Rate	4.27%
Senior Notes, Series B
Debt Instrument [Line Items]
Total Long-term debt, net	$ 180,000		0
Interest Rate	4.42%
Senior Notes, Series C
Debt Instrument [Line Items]
Total Long-term debt, net	$ 130,000		0
Interest Rate	4.52%
Revolving Credit Facility
Debt Instrument [Line Items]
Total Long-term debt, net	$ 338,816		$ 235,000
Minimum | Eurodollar
Debt Instrument [Line Items]
Margin added to variable rate interest rate (percentage)	1.00%
Minimum | Eurodollar | Revolving Credit Facility
Debt Instrument [Line Items]
Margin added to variable rate interest rate (percentage)	1.00%
Minimum | Base Rate
Debt Instrument [Line Items]
Margin added to variable rate interest rate (percentage)	0.00%
Minimum | Base Rate | Revolving Credit Facility
Debt Instrument [Line Items]
Margin added to variable rate interest rate (percentage)	0.00%
Minimum | LIBOR
Debt Instrument [Line Items]
Margin added to variable rate interest rate (percentage)	3.72%
Minimum | LIBOR | Revolving Credit Facility
Debt Instrument [Line Items]
Margin added to variable rate interest rate (percentage)	1.38%	1.00%
Maximum | Eurodollar
Debt Instrument [Line Items]
Margin added to variable rate interest rate (percentage)	1.50%
Maximum | Eurodollar | Revolving Credit Facility
Debt Instrument [Line Items]
Margin added to variable rate interest rate (percentage)	1.50%
Maximum | Base Rate
Debt Instrument [Line Items]
Margin added to variable rate interest rate (percentage)	0.50%
Maximum | Base Rate | Revolving Credit Facility
Debt Instrument [Line Items]
Margin added to variable rate interest rate (percentage)	0.50%
Maximum | LIBOR | Revolving Credit Facility
Debt Instrument [Line Items]
Margin added to variable rate interest rate (percentage)	3.36%	2.23%

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- Definition

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

+ References

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28555-108399

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount of long-term debt classified as other.

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