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Income Taxes (Details) - USD ($) | Apr. 30, 2016 | Jul. 31, 2015
--- | --- | ---
Income Tax Contingency [Line Items] |  |
Unrecognized tax benefits | $ 8,811,000 | $ 2,796,000
Interest accrued relating to income taxes | 59,000 | 68,000
Unrecognized tax benefits that would positively impact our effective tax rate, if recognized | 7,974,000 | 2,138,000
An offset to the non-current deferred tax assets |  |
Income Tax Contingency [Line Items] |  |
Unrecognized tax benefits | 5,549,000 | 1,223,000
Noncurrent Income Taxes Payable |  |
Income Tax Contingency [Line Items] |  |
Unrecognized tax benefits | $ 3,262,000 | $ 1,573,000

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- Definition Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Unrecognized Tax Benefit -URI http://asc.fasb.org/extlink&oid=6527854 + Details
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- Definition Amount of interest expense accrued for an underpayment of income taxes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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- Definition The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 + Details
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