Real Estate Fund Investments - Schedule of Financial Information for Fund Investment (Parenthetical) (Details) $ in Thousands	Dec. 31, 2016 USD ($)
Unconsolidated Real Estate Funds [Member] \| 50 Beale Street [Member] \| Property Fund VII [Member]
Investment Holdings [Line Items]
Real estate investments	$ 123,105

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.

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