Quarterly report pursuant to Section 13 or 15(d)

Income Taxes - Additional information (Detail)

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Income Taxes - Additional information (Detail) (USD $)
In Millions, unless otherwise specified
9 Months Ended
Sep. 29, 2012
Oct. 01, 2011
Income Taxes [Line Items]    
Effective income tax rate 24.20% 24.10%
Tax settlements of prior years tax audits $ 8.0 $ 6.0
Reductions due to settlement of foreign tax claim 6.5 16.8
Tax benefits from utilization of capital loss carryforward 11.1  
Realization of unrecognized tax benefits   2.8
Decrease in unrecognized tax benefits and associated interest primarily due to the audit settlements 6.6  
Total unrecognized tax benefits 96.1  
Unrecognized tax benefits and interest 2.5  
Possible decrease in unrecognized income tax benefits $ 2.3