v2.4.0.6
Fair Values of Financial Instruments (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
Assets:    
Marketable debt securities $ 43,300 $ 66,700
Liabilities:    
Redeemable OP unitholder interests, Carrying Value 102,837 0
Carrying amount
   
Assets:    
Cash and cash equivalents 45,807 21,812
Secured loans receivable, net 212,577 149,263
Derivative instruments 11 99
Marketable debt securities 43,331 66,675
Unsecured loans receivable, net 63,598 0
Liabilities:    
Senior notes payable and other debt, gross, Fair Value 6,180,443 2,926,954
Derivative instruments and other liabilities 80,815 3,722
Redeemable OP unitholder interests, Carrying Value 102,837 0
Fair value
   
Assets:    
Cash and cash equivalents 45,807 21,812
Secured loans receivable, net 216,315 155,377
Derivative instruments 11 99
Marketable debt securities 43,331 66,675
Unsecured loans receivable, net 65,219 0
Liabilities:    
Senior notes payable and other debt, gross, Fair Value 6,637,691 3,055,435
Derivative instruments and other liabilities 80,815 3,722
Redeemable OP unitholder interests, Carrying Value $ 102,837 $ 0