Fair Value Measurements (Details 1) - Level 3 - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Carrying Value
Fair Value, Balance Sheet Grouping
Non-recourse debt	$ 1,923,575	$ 1,896,489
Loan receivable	82,544	40,000
Other securities	7,494	9,381
Deferred acquisition fees payable	5,320	9,009
CMBS	2,366	3,053
Fair Value
Fair Value, Balance Sheet Grouping
Non-recourse debt	1,970,579	1,961,905
Loan receivable	83,434	41,990
Other securities	9,649	9,649
Deferred acquisition fees payable	5,361	10,077
CMBS	$ 8,184	$ 8,899