Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share - Additional Information (Detail)

v2.4.0.8
Earnings Per Share - Additional Information (Detail)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 27, 2014
Sep. 28, 2013
Sep. 27, 2014
Sep. 28, 2013
Stock Option
       
Earnings Per Share Disclosure [Line Items]        
Stock options excluded from computation of earnings per share 0.1 0.1 1.8 1.2
Performance-Based | Restricted Stock Units (RSUs)
       
Earnings Per Share Disclosure [Line Items]        
Stock options excluded from computation of earnings per share 1.3 1.7 1.3 1.7