Real Estate (Details) (Real Estate Funds [Member], USD $)	Mar. 31, 2012
Real Estate Funds [Member]
Investment Holdings [Line Items]
Operating Leases, Future Minimum Payments Receivable, Current	$ 1,421,000
Operating Leases, Future Minimum Payments Receivable, in Two Years	1,464,000
Operating Leases, Future Minimum Payments Receivable, in Three Years	1,508,000
Operating Leases, Future Minimum Payments Receivable, in Four Years	1,553,000
Operating Leases, Future Minimum Payments Receivable, in Five Years	1,600,000
Operating Leases, Future Minimum Payments Receivable, Thereafter	$ 331,476,000

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Future rental payments receivable within one year of the balance sheet date under an operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 13

-Paragraph 23

-Subparagraph b(ii)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 50

-Paragraph 4

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6454179&loc=d3e41551-112718

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- Definition

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+ References

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- Definition

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+ References

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+ References

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- Definition

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- Definition

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+ References

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