Changes to Goodwill by Acquisition (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended
Oct. 05, 2013
Goodwill [Line Items]
Working capital adjustments	$ 315
Acquisition-related tax adjustments	(1,016)
Adjustment to assets held for sale	63
Adjustment for accrued liabilities	1,500
Asset reclassification adjustment	1,122
Acquisitions during fiscal 2013	4,349
Change in goodwill during the period	6,333
Modesto
Goodwill [Line Items]
Acquisitions during fiscal 2013	4,209
Change in goodwill during the period	4,209
Acquired Hostess Assets
Goodwill [Line Items]
Acquisitions during fiscal 2013	140
Change in goodwill during the period	140
Lepage Bakeries Inc
Goodwill [Line Items]
Working capital adjustments	315
Acquisition-related tax adjustments	(1,016)
Adjustment to assets held for sale	63
Adjustment for accrued liabilities	1,500
Change in goodwill during the period	862
Other
Goodwill [Line Items]
Asset reclassification adjustment	1,122
Change in goodwill during the period	$ 1,122

Business Combination Provisional Information Initial Accounting Incomplete Adjustment Asset Reclassification

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Business Combination Provisional Information Initial Accounting Incomplete Adjustment Assets Held For Sale

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Goodwill Adjustment Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Deferred Tax Liabilities Non current

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This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to financial assets acquired in connection with a business combination for which the initial accounting was incomplete.

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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Amount of increase (decrease) of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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