Employee Retirement and Profit Sharing Plans - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Unrecognized prior service costs, before tax	$ 2,100	$ 3,000
Unrecognized prior service costs, net of tax	1,300	1,800
Unrecognized actuarial losses, before tax	141,500	136,700
Unrecognized actuarial losses, net of tax	87,400	84,100
Prior service costs expected to be recognized next fiscal year	700
Prior service costs expected to be recognized next fiscal year, net of tax	400
Actuarial losses expected to be recognized next fiscal year	10,400
Actuarial losses expected to be recognized next fiscal year, net of tax	6,400
Current accrued pension liability	800
Employer expected contribution in 2016	2,100
Accumulated benefit obligation for all defined benefit plans	$ 336,300	331,300
Frozen defined benefit plan obligations	90.00%
Minimum
Defined Benefit Plan Disclosure [Line Items]
Plan participants' contributions, allowed percentage of participants' annual compensation	1.00%
Plans in green zone	80.00%
Maximum
Defined Benefit Plan Disclosure [Line Items]
Plan participants' contributions, allowed percentage of participants' annual compensation	50.00%
Plans in red zone, less than	65.00%
Plans in yellow zone, less than	80.00%
De-risking strategy in 2014 | Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Targets investment in equity securities, fixed income, cash equivalents and other investments, percentage	41.00%
De-risking strategy in 2014 | Fixed Income Securities
Defined Benefit Plan Disclosure [Line Items]
Targets investment in equity securities, fixed income, cash equivalents and other investments, percentage	58.00%
De-risking strategy in 2014 | Cash and Cash Equivalents
Defined Benefit Plan Disclosure [Line Items]
Targets investment in equity securities, fixed income, cash equivalents and other investments, percentage	1.00%
De-risking strategy in 2014 | Other Investments
Defined Benefit Plan Disclosure [Line Items]
Targets investment in equity securities, fixed income, cash equivalents and other investments, percentage	1.00%
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Funded status at end of year	$ (56,550)	$ (51,222)
Employer expected contribution in 2016	$ 5,300