Benefit Plans - Schedule of Amounts Included in Accumulated Other Comprehensive Income, Net of Tax which have Not yet been Recognized in Net Periodic Benefit Cost (Detail) (USD $) In Millions, unless otherwise specified	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Compensation And Retirement Disclosure [Abstract]
Unamortized prior service cost	$ (0.2)	$ (0.3)	$ (0.4)
Unrecognized net actuarial gain	5.7	5.3	8.5
Unamortized prior service benefit	$ 5.5	$ 5.0	$ 8.1