Real Estate Fund Investments - Schedule of Financial Positions from Fund Investment (Details) $ in Thousands	Jun. 30, 2016 USD ($)
Property Fund II [Member]
Investment Holdings [Line Items]
Real estate funds financial	$ 35,656
Real estate funds financial	743
Real estate funds financial	34,913
Real estate funds financial	35,656
Property Fund VII [Member]
Investment Holdings [Line Items]
Real estate funds financial	165,587
Real estate funds financial	1,027
Real estate funds financial	164,560
Real estate funds financial	165,587
Real Estate Investments | Property Fund II [Member]
Investment Holdings [Line Items]
Real estate funds financial	35,016
Real Estate Investments | Property Fund VII [Member]
Investment Holdings [Line Items]
Real estate funds financial	165,177
Cash And Cash Equivalent | Property Fund II [Member]
Investment Holdings [Line Items]
Real estate funds financial	513
Cash And Cash Equivalent | Property Fund VII [Member]
Investment Holdings [Line Items]
Real estate funds financial	410
Other Assets [Member] | Property Fund II [Member]
Investment Holdings [Line Items]
Real estate funds financial	127
Other Liabilities [Member] | Property Fund II [Member]
Investment Holdings [Line Items]
Real estate funds financial	743
Other Liabilities [Member] | Property Fund VII [Member]
Investment Holdings [Line Items]
Real estate funds financial	$ 1,027