Previously Consolidated Variable Interest Entities (Details 9) (Previously Consolidated Variable Interest Entities, USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011
Impaired Loans
Average Book Value	$ 15,392		$ 180,044
Income Recorded	1,268	[1]	14,265	[1]
Senior Mortgage Loans
Average Book Value	5,713		53,066
Income Recorded	233	[1]	3,927	[1]
Subordinated interests in mortgages
Average Book Value	5,571		33,508
Income Recorded	142	[1]	817	[1]
Mezzanine and Other Loans
Average Book Value	4,108		93,470
Income Recorded	$ 893	[1]	$ 9,521	[1]

[1] Substantially all of the income recorded on impaired loans during the period was received in cash.