Long-Term Debt (Detail) - USD ($) $ in Thousands	Dec. 29, 2017	Sep. 29, 2017
Debt Instrument [Line Items]
Credit facility	$ 70,000	$ 50,000
Government refundable advances	45,464	45,549
Obligation under capital leases	70,693	71,091
Debt issuance costs	(4,415)	(4,654)
Total long-term debt	799,716	776,848
Less current maturities	17,429	17,424
Carrying amount of long-term debt	782,287	759,424
U.S. Credit Facility
Debt Instrument [Line Items]
Credit facility	70,000	50,000
U.S. Term Loan, due April 2020
Debt Instrument [Line Items]
Term Loan	221,875	225,000
3.625% Senior Notes, due April 2023
Debt Instrument [Line Items]
Senior Notes	$ 396,099	$ 389,862

Government refundable advances.

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- Definition

Long term debt and capital lease obligation noncurrent including long term credit facility noncurrent.

+ References

No definition available.

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- Definition

Long term debt and capital lease obligations including credit facilities less capital lease future interest payment.

+ References

No definition available.

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- Definition

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

+ References

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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.

+ 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

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount of long-term debt and capital leases due within one year or the normal operating cycle, if longer.

+ References

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- Definition

The carrying value as of the balance sheet date of the noncurrent portion 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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- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

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