Quarterly report pursuant to Section 13 or 15(d)

Income Taxes - Additional Information (Detail)

v2.4.0.8
Income Taxes - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 28, 2013
Sep. 29, 2012
Sep. 28, 2013
Sep. 29, 2012
Dec. 31, 2012
Income Tax Disclosure [Abstract]          
Penalty or interest liability accrued $ 0   $ 0   $ 0
Penalty or interest expense     0 0  
Effective tax rate 33.40% 33.20% 28.80% 32.10%  
Domestic tax credit related to 2012     1.1    
Domestic tax credit related to 2013     0.6    
Amount recognized in tax credit $ 0.2