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Schedule of Inventories Net (Detail) (USD $)
In Millions, unless otherwise specified
Jul. 01, 2012
Dec. 25, 2011
Schedule of Inventory [Line Items]    
Raw materials $ 40.0 $ 36.9
Work in process 136.2 135.2
Finished goods 63.5 62.1
Inventories $ 239.7 $ 234.2