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Post-Retirement Plans - Additional Information (Detail) (USD $)	6 Months Ended
	Jul. 12, 2014	Jul. 13, 2013
Pension and Other Postretirement Benefits Disclosure [Line Items]
Pension contributions	$ 5,029,000	$ 2,543,000
Expected pension income for fiscal 2014	7,800,000
Total cost and employer contributions	$ 14,400,000	$ 12,700,000

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- Definition

Amount of employer's best estimate of contributions expected to be paid to the plan in the current remaining fiscal period.

+ References

No definition available.

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- Definition

The amount of the cost recognized during the period for defined contribution plans.

+ References

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=6414718&loc=d3e28014-114942

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The amount of cash or cash equivalents contributed by the entity to fund its pension plans.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 25

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-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3536-108585

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