Net Investments in Properties and Real Estate Under Construction (Details 2) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Liabilities assumed at fair value:
Gain on change in control of interests	$ (49,922)	$ 0	$ (49,922)	$ 0
Operating real estate
Investments In Real Estate
Cash consideration			11,363
Assets acquired at fair value:
Land	26,941		26,941
Buildings	109,399		109,399
In-place lease intangible assets	9,783		9,783
Other assets acquired	1,705		1,705
Total assets acquired	147,828		147,828
Liabilities assumed at fair value:
Non-recourse debt, net	(70,578)		(70,578)
Other liabilities assumed	(831)		(831)
Total liabilities assumed	(71,409)		(71,409)
Total identifiable net assets	76,419		76,419
Gain on change in control of interests			(49,922)	$ (49,900)
Carrying value of previously held equity investment	(15,134)		(15,134)
Total assets acquired less previously held equity investments	$ 11,363		$ 11,363