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Business Combinations - Summary of Preliminary Recording of Fair Values of Assets Acquired and Liabilities Assumed (Parenthetical) (Detail) (Measurement Period Adjustments [Member], FourStar Microbial [Member], USD $) In Thousands, unless otherwise specified | 1 Months Ended
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Dec. 29, 2012
Measurement Period Adjustments [Member] | FourStar Microbial [Member] |
Business Acquisition [Line Items] |
Loss recognized prior ownership interest in acquire | $ 370

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- Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The expenses and losses recorded for each transaction with the acquiree that was recognized separately from the acquisition of assets and assumptions of liabilities in the business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(3) -URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463 + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration