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Fair Value Measurements - Financial Assets and Liabilities Measured on Recurring and Non-Recurring Basis (Details) - Fair Value, Measurements, Recurring [Member] $ in Thousands	Apr. 30, 2016 USD ($)
Assets at Fair Value:
Total assets at fair value	$ 30,924
Limoneira
Assets at Fair Value:
Total assets at fair value	30,924
Level 1 [Member]
Assets at Fair Value:
Total assets at fair value	30,924
Level 1 [Member] | Limoneira
Assets at Fair Value:
Total assets at fair value	$ 30,924

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

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- References

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