Real Estate - Portfolio (Remaining Funding Commitments) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012
Real Estate Investments [Abstract]
Number of Properties with Funding Commitments	60
Total Commitment	$ 184,819	[1]
Amount Funded	123,858
Remaining Commitment	$ 60,961

[1] Includes land and construction costs.