Related Party Transactions (Details) $ in Millions	12 Months Ended
Jul. 31, 2019 USD ($) yr director	Jul. 31, 2018 USD ($)	Jul. 31, 2017 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 \| $	$ 9.6	$ 9.2	$ 8.9
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	$ 0.4

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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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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Amount of transactions with related party during the financial reporting period.

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-SubTopic 10
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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.

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