Fair Value of Financial Instruments - Debt, Deferred Compensation Assets, Deferred Compensation Liabilities and Commodity Hedging Agreements (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 28, 2014	Dec. 29, 2013	Sep. 29, 2013
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Acquisition related contingent consideration	$ (13,000)
Carrying Amount [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Public debt securities	(373,709)	(373,566)	(373,520)
Deferred compensation plan assets	18,015	17,098	15,875
Deferred compensation plan liabilities	(18,015)	(17,098)	(15,875)
Non-public variable rate debt	(70,000)	(25,000)	(40,000)
Acquisition related contingent consideration	(13,000)	0	0
Carrying Amount [Member] \| Commodity Hedging Agreements [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Commodity hedging agreements	552	0	0
Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Public debt securities	(406,800)	(409,434)	(411,197)
Deferred compensation plan assets	18,015	17,098	15,875
Deferred compensation plan liabilities	(18,015)	(17,098)	(15,875)
Non-public variable rate debt	(70,000)	(25,000)	(40,000)
Acquisition related contingent consideration	(13,000)	0	0
Fair Value [Member] \| Commodity Hedging Agreements [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Commodity hedging agreements	$ 552	$ 0	$ 0

Amount of public debt securities outstanding as of balance sheet date.

No definition available.

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- Definition

Amount of liability recognized arising from contingent consideration in a business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 25

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 35

-Paragraph 1

-Subparagraph b

-URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478

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- Definition

Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements. Represents currently earned compensation under compensation arrangements that is not actually paid until a later date.

+ References

No definition available.

+ Details

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- Definition

Carrying amount as of the balance sheet date of assets held under deferred compensation agreements.

+ 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 210.5-02.17)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 17

-Article 5

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- Definition

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 20

-Section 50

-Paragraph 3

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=34720828&loc=SL20225862-175312

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4B

-Subparagraph (a),(c)

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624163-113959

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 20

-Section 55

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=36459792&loc=SL20226000-175313

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- Definition

Fair value portion of contractual arrangement with a lender under which borrowings can be made up to a specific amount at any point in time.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Line-of-Credit Arrangement

-URI http://asc.fasb.org/extlink&oid=6517033

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