Fair Values (Details 3) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012		Dec. 31, 2011
Financial assets:
Loans and other lending investments, net	$ 2,300,810		$ 2,860,762
Financial liabilities:
Debt obligations, net	5,603,939	[1]	5,837,540
Book Value
Financial assets:
Loans and other lending investments, net	2,300,810	[2]	2,860,762	[2]
Financial liabilities:
Debt obligations, net	5,603,939	[2]	5,837,540	[2]
Fair Value
Financial assets:
Loans and other lending investments, net	2,318,406	[2]	2,786,595	[2]
Financial liabilities:
Debt obligations, net	$ 5,582,526	[2]	$ 5,495,197	[2]

[1] All of the Company's non-accrual loans are considered impaired and included in the table above. In addition, as of June 30, 2012 and December 31, 2011, certain loans modified through troubled debt restructurings with a recorded investment of $205.5 million and $255.3 million, respectively, are also included as impaired loans in accordance with GAAP although they are performing and on accrual status.

[2] The carrying values of other financial instruments including cash and cash equivalents, restricted cash, accrued interest receivable and accounts payable, approximate the fair values of the instruments. Cash and cash equivalents and restricted cash values are considered Level 1 on the fair value hierarchy. The fair value of other financial instruments, including derivative assets and liabilities and marketable securities are included in the previous fair value hierarchy table.