Commitments and Contingencies - Future Purchase Commitments (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012
Disclosure Commitments And Contingencies Future Purchase Commitments [Abstract]
Purchase obligations, 2015	$ 126,211
Purchase obligations, 2016	2,050
Purchase obligations, 2017	0
Purchase obligations, 2018	0
Purchase obligations, 2019	0
Purchase obligations, Thereafter	0
Purchase obligations, Total	$ 128,261us-gaap_PurchaseObligation	$ 69,600us-gaap_PurchaseObligation	$ 52,700us-gaap_PurchaseObligation

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Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier.

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No definition available.

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- Definition

Minimum amount of purchase arrangement maturing after the fifth fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments.

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No definition available.

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Name:	us-gaap_PurchaseObligationDueAfterFifthYear
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- Definition

Minimum amount of purchase arrangement maturing in the fifth fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments.

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No definition available.

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Name:	us-gaap_PurchaseObligationDueInFifthYear
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- Definition

Minimum amount of purchase arrangement maturing in the fourth fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments.

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No definition available.

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Name:	us-gaap_PurchaseObligationDueInFourthYear
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- Definition

Minimum amount of purchase arrangement maturing in the next fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments.

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No definition available.

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- Definition

Minimum amount of purchase arrangement maturing in the second fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments.

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No definition available.

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Name:	us-gaap_PurchaseObligationDueInSecondYear
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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Minimum amount of purchase arrangement maturing in the third fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments.

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No definition available.

+ Details

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