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Intangible And Other Assets (Narrative) (Detail) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 29, 2012
Dec. 31, 2011
Jan. 01, 2011
Finite-Lived Intangible Assets [Line Items]      
Accumulated impairment losses $ 0    
Weighted-average amortization period (in years) 13 years    
Aggregate amortization expense 26.5 25.3 24.0
Estimated annual amortization expense for fiscal period 2013 22.6    
Estimated annual amortization expense for fiscal period 2014 16.4    
Estimated annual amortization expense for fiscal period 2015 12.3    
Estimated annual amortization expense for fiscal period 2016 10.2    
Estimated annual amortization expense for fiscal period 2017 $ 9.8    
Customer Relationships [Member]
      
Finite-Lived Intangible Assets [Line Items]      
Weighted-average amortization period (in years) 16 years    
Customer relationship contractual term, minimum (in years) 3 years    
Customer relationship contractual term, maximum (in years) 5