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Post-Retirement Plans - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Oct. 07, 2017	Oct. 08, 2016	Oct. 07, 2017	Oct. 08, 2016
Pension and Other Postretirement Benefits Disclosure [Line Items]
Pension plan settlement loss	$ 3,030,000	$ 1,832,000	$ 3,030,000	$ 6,473,000
Total cost and employer contributions	6,500,000	$ 6,400,000	22,000,000	$ 21,200,000
Multiemployer plan, withdrawal obligation	15,200,000		15,200,000
Multiemployer plans transition payments payable	$ 3,100,000		$ 3,100,000
Multiemployer plans payable date			Nov. 03, 2017
Multiemployer plan withdrawal liability of net present value monthly payments period	20 years
Qualified Pension Plan
Pension and Other Postretirement Benefits Disclosure [Line Items]
Voluntarily contributions made by an employer	$ 1,600,000
Defined benefit plan, additional contributions, remainder of fiscal year	$ 0		$ 0

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Multiemployer plan withdrawal liability of net present value monthly payments period.

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Pension and other postretirement benefits disclosure.

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- Definition

Amount of contributions expected to be received by defined benefit plan from employer in fiscal year. Excludes contributions paid by employer in current fiscal year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 6
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e2709-114920

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- Definition

Amount of gain (loss) recognized in net periodic benefit (cost) credit from irrevocable action relieving primary responsibility for benefit obligation and eliminating risk related to obligation and assets used to effect settlement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (h)(7)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920

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Amount of cost for defined contribution plan.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942

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Amount of discretionary contributions made by an employer to a defined contribution plan.

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Amount of the obligation recognized by withdrawing from a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers.

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