Significant Accounting Policies - Summary of Estimated Fair Value of Assets Acquired (Detail) (USD $) In Thousands, unless otherwise specified	Jul. 19, 2012
Business Combinations [Abstract]
Land	$ 1
Building	314
Equipment	1,144
Assets acquired	$ 1,459

Amount of assets acquired at the acquisition date.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472

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- Definition

Amount of facility held for productive use including, but not limited to, office, production, storage and distribution facilities, acquired at the acquisition date.

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- Definition

Amount of tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment, acquired at the acquisition date.

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- Definition

Amount of real estate acquired, at the acquisition date.

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