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Unaudited Quarterly Financial Information - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 28, 2013 | Jul. 13, 2013 | Dec. 28, 2013
Selling, General and Administrative Expenses |  |  |
Schedule Of Quarterly Financial Information [Line Items] |  |  |
Out-of-period adjustments | $ 4.4 |  |
Out-of-period adjustments, net of tax | 2.7 |  |
Goodwill and Other Assets |  |  |
Schedule Of Quarterly Financial Information [Line Items] |  |  |
Out-of-period adjustments | $ 0.9 | $ 1.1 | $ 2.0

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