Transactions with Unconsolidated Joint Ventures (Details) - May. 31, 2015 - Member of unconsolidated joint venture [Member] - USD ($) $ in Millions	Total
Related Party Transaction [Line Items]
Promissory note extended to related party	$ 1.5
Additional loan amount contingent upon certain conditions	$ 4.0

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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Balance Type:	na
Period Type:	duration