Employee Retirement and Profit Sharing Plans - Summary of Assumptions Used to Determine Net Periodic Benefit Cost (Detail) (Employee Retirement And Profit Sharing Plans)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Employee Retirement And Profit Sharing Plans
Defined Benefit Plan Disclosure [Line Items]
Weighted average discount rate	3.70%	4.50%	5.28%
Expected return on plan assets	7.50%	7.67%	7.67%
Rate of compensation increase	4.00%	4.00%	4.00%