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Related Party Transactions (Details) $ in Millions | 12 Months Ended
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Jul. 31, 2017 USD ($) yr director | Jul. 31, 2016 USD ($) | Jul. 31, 2015 USD ($)
BCRC [Member] |  |  |
Right to appoint the number of directors | director | 4 |  |
Number of directors | director | 9 |  |
Management agreement renewable period, years | yr | 1 |  |
Management fees and reimbursement of operating expenses | $ | $ 8.9 | $ 8.4 | $ 7.1
Slifer Smith and Frampton and Vail Associates Real Estate Llc Ssf and Vare [Member] |  |  |
Ownership interest | 50.00% |  |
Real estate revenue from leases | $ | $ 0.4 | $ 0.4 | $ 0.5

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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571 + Details
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- Definition Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(e)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Related Parties -URI http://asc.fasb.org/extlink&oid=16382449 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07.1(c)) -URI http://asc.fasb.org/extlink&oid=6488393&loc=d3e606610-122999 + Details
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