Leased Property Under Capital Leases - Leased Property Under Capital Leases (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 28, 2014	Dec. 29, 2013
Capital Leased Assets [Line Items]
Leased property under capital leases	94,793us-gaap_CapitalLeasedAssetsGross	$ 94,889us-gaap_CapitalLeasedAssetsGross
Less: Accumulated amortization	51,822	45,908
Leased property under capital leases, net	42,971	$ 48,981
Minimum [Member] \| Assets Held under Capital Leases [Member]
Capital Leased Assets [Line Items]
Leased property under capital leases, Estimated Useful Lives	3 years
Maximum [Member] \| Assets Held under Capital Leases [Member]
Capital Leased Assets [Line Items]
Leased property under capital leases, Estimated Useful Lives	20 years

Amount before accumulated depreciation of leased physical assets used in the normal conduct of business to produce goods and services.

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- Details

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- Definition

The total gross amount less the charge for the use of the long-lived depreciable assets subject to a lease meeting the criteria for capitalization.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

The total charge for the use of long-lived depreciable assets subject to a lease meeting the criteria for capitalization.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 30

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6455314&loc=d3e45014-112735

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 10

-Section 55

-Paragraph 40

-Subparagraph (Note 2)

-URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697

+ Details

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- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

+ Details

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