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Merger - Intangible Assets Acquired (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jan. 03, 2015
Acquired Finite And Indefinite-Lived Intangible Assets [Line Items]
Intangible Assets	$ 28,550us-gaap_FinitelivedIntangibleAssetsAcquired1
Trade Name [Member]
Acquired Finite And Indefinite-Lived Intangible Assets [Line Items]
Intangible Assets	6,700us-gaap_IndefinitelivedIntangibleAssetsAcquired / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TradeNamesMember
Useful Life	Indefinite
Customer lists [Member]
Acquired Finite And Indefinite-Lived Intangible Assets [Line Items]
Intangible Assets	5,100us-gaap_FinitelivedIntangibleAssetsAcquired1 / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerListsMember
Useful Life	7 years
Customer relationships [Member]
Acquired Finite And Indefinite-Lived Intangible Assets [Line Items]
Intangible Assets	12,100us-gaap_FinitelivedIntangibleAssetsAcquired1 / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember
Useful Life	20 years
Favorable leases [Member]
Acquired Finite And Indefinite-Lived Intangible Assets [Line Items]
Intangible Assets	$ 4,650us-gaap_FinitelivedIntangibleAssetsAcquired1 / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OffMarketFavorableLeaseMember
Favorable leases [Member] | Minimum [Member]
Acquired Finite And Indefinite-Lived Intangible Assets [Line Items]
Useful Life	7 years
Favorable leases [Member] | Maximum [Member]
Acquired Finite And Indefinite-Lived Intangible Assets [Line Items]
Useful Life	22 years

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Indefinite lived intangible assets useful life description.

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Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, resulting from a business combination.

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of increase in assets, excluding financial assets and goodwill, lacking physical substance with an indefinite life, resulting from a business combination.

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