Real Estate Fund Investments - Schedule of Investments of Property Funds (Parenthetical) (Details) - One Market Plaza [Member]	9 Months Ended
Sep. 30, 2015
Investment Holdings [Line Items]
Ownership interest rate of property	49.00%
Other Investors [Member]
Investment Holdings [Line Items]
Ownership interest rate of property	49.00%

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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