Debt - Additional Information (Detail) - USD ($)	12 Months Ended
Oct. 02, 2020	Sep. 27, 2019
Debt Instrument [Line Items]
Debt instrument face amount	$ 700,000,000.0
Unamortized deferred financing costs	5,100,000
Revolving Credit Facility
Debt Instrument [Line Items]
Unamortized deferred financing costs	300,000
Term Loans
Debt Instrument [Line Items]
Unamortized deferred financing costs	4,825,000	$ 7,400,000
Quarterly principal installments	$ 1,700,000
Maximum period for reinvestment of business divestiture proceeds	18 months
Maximum period for completion of reinvestment of business divestiture proceeds	6 months
Estimated fair value of term loans	$ 649,400,000
Term Loans \| Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate	2.25%
Term Loans \| Federal Funds Effective Swap Rate
Debt Instrument [Line Items]
Basis spread on variable rate	0.50%
Term Loans \| One Month LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%
Term Loans \| Minimum \| Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate	1.25%
Credit Agreement \| Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 160,000,000.0
Remaining borrowing capacity	160,000,000.0
Debt instrument, maximum borrowing threshold	$ 50,000,000.0

Debt Instrument, Covenant Terms, Maximum Borrowing Threshold to Trigger Financial Covenants

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- Definition

Debt Instrument, Payment Terms, Reinvestment Of Divestiture Of Business Proceeds, Transaction Completion, Period

+ References

No definition available.

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- Definition

Debt Instrument, Payment Terms, Reinvestment Of Divestiture of Business Proceeds, Period

+ References

No definition available.

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- Definition

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

+ References

No definition available.

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
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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 of the required periodic payments including both interest and principal payments.

+ 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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- Definition

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

+ References

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- Definition

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.

+ References

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

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