Consolidated Long-Term Debt (Detail) - USD ($) $ in Thousands	Jan. 03, 2016	Dec. 28, 2014
Long Term Debt And Other Financing Arrangement [Line Items]
Capital lease obligations	$ 5,996	$ 2,267
Debt issuance costs, net of accumulated amortization of $14.7 million in 2015 and $17.0 million in 2014	(27,922)	(22,947)
Total debt	2,240,793	1,501,164
Less - current portion	59,333	565
Consolidated long-term debt, net of debt issuance costs	2,181,460	1,500,599
Total debt	2,240,793	1,501,164
Series 2012-1 5.216% Fixed Rate Senior Secured Notes [Member]
Long Term Debt And Other Financing Arrangement [Line Items]
Fixed rate senior notes	962,719	1,521,844
3.484% Class A-2-I Notes; expected repayment date October 2020; legal final maturity October 2045 [Member]
Long Term Debt And Other Financing Arrangement [Line Items]
Fixed rate senior notes	500,000
4.474% Class A-2-II Notes; expected repayment date October 2025; legal final maturity October 2045 [Member]
Long Term Debt And Other Financing Arrangement [Line Items]
Fixed rate senior notes	800,000
2012 Variable Funding Notes [Member]
Long Term Debt And Other Financing Arrangement [Line Items]
Variable Funding Notes	0	0
2015 Variable Funding Notes [Member]
Long Term Debt And Other Financing Arrangement [Line Items]
Variable Funding Notes	$ 0	$ 0

Long Term Debt And Other Financing Arrangement [Line Items]

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The carrying value as of the balance sheet date of the Variable Funding Notes.

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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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
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-Paragraph 1
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Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 210
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Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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