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Assets Measured at Fair Value Using Significant Unobservable Inputs (Detail) (Level 3, USD $) In Thousands, unless otherwise specified | 3 Months Ended
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Oct. 31, 2013
Level 3 |
Fair value measurements Significant unobservable inputs [Line Items] |
Beginning Balances | $ 666
Net change in other comprehensive income | 34
Sales | $ (700)

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- Definition Fair Value, Measurement with Unobservable Inputs Reconciliation, Nonrecurring Basis, Asset Value + References No definition available. + Details
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- Definition Amount of gain (loss) recognized in other comprehensive income (loss) for financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + 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 (c)(1a) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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- Definition Amount of sale of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + 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 (c)(2) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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