INVESTMENTS IN UNCONSOLIDATED ENTITIES AND LOAN MANAGER (Investment Vehicles, Including the Range of Interests it Owns) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Jan. 31, 2013	Dec. 31, 2012
Schedule of Equity Method Investments [Line Items]
Range of ownership interests owned		10.00%
Investments in unconsolidated entities	$ 13,395		$ 13,156
Real Estate Investment Entities [Member]
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated entities	8,259		8,397
Real Estate Investment Entities [Member] | Minimum [Member]
Schedule of Equity Method Investments [Line Items]
Range of ownership interests owned	1.00%
Real Estate Investment Entities [Member] | Maximum [Member]
Schedule of Equity Method Investments [Line Items]
Range of ownership interests owned	10.00%
Financial Fund Management Partnerships [Member]
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated entities	4,180		3,847
Financial Fund Management Partnerships [Member] | Minimum [Member]
Schedule of Equity Method Investments [Line Items]
Range of ownership interests owned	3.00%
Financial Fund Management Partnerships [Member] | Maximum [Member]
Schedule of Equity Method Investments [Line Items]
Range of ownership interests owned	50.00%
Trapeza Entities [Member]
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated entities	$ 956		$ 912
Trapeza Entities [Member] | Minimum [Member]
Schedule of Equity Method Investments [Line Items]
Range of ownership interests owned	33.00%
Trapeza Entities [Member] | Maximum [Member]
Schedule of Equity Method Investments [Line Items]
Range of ownership interests owned	50.00%