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Other Comprehensive Income - Additional Information (Detail) (USD $)
In Millions
Oct. 01, 2011
Jan. 01, 2011
Accumulated Other Comprehensive Income (Loss) [Line Items]  
Accumulated other comprehensive income (loss), unrecognized pension benefit costs$ (2.5)$ (2.5)
Accumulated other comprehensive income (loss), foreign currency translation adjustments(9.7)(0.5)
Accumulated other comprehensive income (loss), unrealized loss on interest rate swaps$ (1.8)$ (1.1)