Pension Plans - Summary of Weighted Average Assumptions Used to Determine Full Year Pension Costs (Detail)	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Compensation And Retirement Disclosure [Abstract]
Discount rate	4.30%	4.50%	5.30%
Expected long-term rate of return on plan assets	7.60%	7.70%	7.80%
Rate of compensation increase	3.60%	3.60%	3.60%