Covenant maximum leverage ratio.

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Debt Instrument Change Of Control Triggering Event Redemption Price Percentage Of Principal Amount Redeemed.

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Fee for unused borrowing capacity

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Deferred Compensation Plan Percentage Deferral Of Participant Base Salary

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Line of credit facility extension period.

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Accordion feature amount for the credit facility

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Minimum leverage ratio on covenant holiday.

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Redemption price for senior notes.

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Carrying value as of the balance sheet date of payments made in excess of existing cash balances, which will be honored by the bank but reflected as a loan to the entity. Overdrafts generally have a very short time frame for correction or repayment and are therefore more similar to short-term bank financing than trade financing.

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

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States whether the entity was in compliance with the debt covenants throughout the reporting period, and describes facts and circumstances of any compliance failure.

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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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No definition available.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Amount, after accumulated amortization, of debt discount.

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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.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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Date the credit facility terminates, in CCYY-MM-DD format.

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Period remaining on line of credit facility before it terminates, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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

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The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a rate subject to change from time to time.

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The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

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The cash outflow for loan and debt issuance costs.

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Debt and Other Commitments - Additional Information (Detail) - USD ($)							12 Months Ended
	Sep. 27, 2019	Nov. 29, 2017	Sep. 28, 2016	Jan. 01, 2016	Apr. 21, 2015	Apr. 03, 2012	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2015	Jul. 17, 2013
Debt Instrument [Line Items]
Bank overdraft							$ 13,767,000	$ 10,550,000
Debt instrument face amount							803,750,000	808,750,000
Payments for debt issuance costs							110,000	100,000	$ 729,000
Deferred Salaries
Debt Instrument [Line Items]
Percentage of amount deferred, maximum				75.00%						75.00%
Deferred Bonus
Debt Instrument [Line Items]
Percentage of amount deferred, maximum										100.00%
2026 Notes
Debt Instrument [Line Items]
Debt instrument face amount			$ 400,000,000.0				$ 400,000,000	400,000,000
Notes due year							Oct. 01, 2026
Price to redeem notes as a percentage of principal			100.00%
Variable interest rate			30.00%
Change of control triggering event price to redeem notes as a percentage of principal							101.00%
Balance of unamortized financing costs							$ 5,742,000
Debt discount							2,108,000
2022 Notes
Debt Instrument [Line Items]
Debt instrument face amount						$ 400,000,000.0	$ 400,000,000	400,000,000
Notes due year							Apr. 01, 2022
Price to redeem notes as a percentage of principal						100.00%
Variable interest rate						35.00%
Change of control triggering event price to redeem notes as a percentage of principal							101.00%
Debt discount							$ 200,000
Payments Of Financing Costs							3,900,000
Standby Letters Of Credit
Debt Instrument [Line Items]
Line of credit facility outstanding daily balance during period							$ 8,400,000	8,400,000
Accounts Receivable Securitization Facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 200,000,000.0										$ 150,000,000.0
Line of credit extended term	1 year
Line of credit facility, expiration date							Sep. 27, 2021
Debt instrument covenant compliance							As of December 28, 2019 and December 29, 2018, respectively, the company was in compliance with all restrictive covenants under the AR facility.
Line of credit facility, amount available							$ 163,400,000
Basis spread on variable rate							0.85%
Unused borrowing fee							0.30%
Balance of unamortized financing costs							$ 200,000	200,000
Unsecured Credit Facility
Debt Instrument [Line Items]
Line of credit facility outstanding daily balance during period							41,750,000	$ 0
Line of credit facility, maximum borrowing capacity		$ 700,000,000.0					500,000,000
Line of credit facility, expiration date								Nov. 29, 2022
Line of credit facility, amount available							449,850,000
Line of credit facility, expiration period					5 years
Line of credit facility, amount available		500,000,000.0
Line of credit facility, additional borrowing capacity		$ 200,000,000.0
Covenant, maximum leverage ratio		4.00
Minimum leverage ratio on covenant holiday		3.75
Payments for debt issuance costs		$ 600,000
Unsecured Credit Facility \| Maximum
Debt Instrument [Line Items]
Line of credit facility outstanding daily balance during period							$ 122,200,000
Unsecured Credit Facility \| Base Rate Loans \| Minimum
Debt Instrument [Line Items]
Basis spread on variable rate		0.00%			0.00%
Unsecured Credit Facility \| Base Rate Loans \| Maximum
Debt Instrument [Line Items]
Basis spread on variable rate		0.575%			0.75%
Unsecured Credit Facility \| Eurodollar Loans \| Minimum
Debt Instrument [Line Items]
Basis spread on variable rate		0.575%			0.70%
Unsecured Credit Facility \| Eurodollar Loans \| Maximum
Debt Instrument [Line Items]
Basis spread on variable rate		1.575%			1.75%
Unsecured Credit Facility \| Federal Funds Rate \| Minimum
Debt Instrument [Line Items]
Basis spread on variable rate		0.05%			0.05%
Unsecured Credit Facility \| Federal Funds Rate \| Maximum
Debt Instrument [Line Items]
Basis spread on variable rate		0.30%			0.50%