Employee Retirement and Profit Sharing Plans - Net Periodic Benefit Cost (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Amortizations:
Net periodic benefit cost	$ 6,594	$ 4,729	$ 10,400
Pension Plan
Components of net periodic benefit cost:
Service cost	3,631	3,081	3,692
Interest cost	13,736	13,979	12,496
Expected return on plan assets	(20,026)	(18,761)	(18,531)
Amortizations:
Prior service cost	856	787	791
Unrecognized net loss	8,544	5,105	11,759
Effect of settlement	0	538	(136)
Other	(147)	0	329
Net periodic benefit cost	$ 6,594	$ 4,729	$ 10,400