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Commitments and Contingencies - Schedule of Unions Representing Employees and the Expiration Date for Agreements (Detail)	12 Months Ended
	Jan. 02, 2016
Norfolk Virginia [Member]
Commitments And Contingencies [Line Items]
Union Locals	IBT822
Expiration Dates	2016-04
Westville Indiana [Member]
Commitments And Contingencies [Line Items]
Union Locals	IBT 135
Expiration Dates	2016-05
Columbus Ohio [Member]
Commitments And Contingencies [Line Items]
Union Locals	IBT 528
Expiration Dates	2016-09
Lima Ohio [Member]
Commitments And Contingencies [Line Items]
Union Locals	IBT 908
Expiration Dates	2017-01
Bellefontaine Ohio GTL Truck Lines Inc [Member]
Commitments And Contingencies [Line Items]
Union Locals	IBT 908
Expiration Dates	2017-02
Bellefontaine Ohio General Merchandise Service Division [Member]
Commitments And Contingencies [Line Items]
Union Locals	IBT 908
Expiration Dates	2017-03
Grand Rapids Michigan [Member]
Commitments And Contingencies [Line Items]
Union Locals	IBT406
Expiration Dates	2017-10

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Commitments and Contingencies.

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Labor union agreement expiration date.

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Unions representing employees.

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