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Quarterly Financial Information (Parenthetical) (Detail) (Selling, General and Administrative Expenses, USD $) In Millions, unless otherwise specified | 3 Months Ended
--- | ---
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

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