Employee Retirement and Profit Sharing Plans - Summary of Assumptions Used to Determine Benefit Obligations (Detail) (Employee Retirement And Profit Sharing Plans)	Dec. 31, 2013	Dec. 31, 2012
Employee Retirement And Profit Sharing Plans
Defined Benefit Plan Disclosure [Line Items]
Weighted average discount rate	4.90%	3.70%
Rate of compensation increase	4.00%	4.00%

Expected rate of compensation increases (for pay-related plans).

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (k)(2)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920

Name:	us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant