Equity - Noncontrolling Interest (Details) - USD ($) $ in Thousands	1 Months Ended	9 Months Ended	12 Months Ended
	Apr. 30, 2016	Sep. 30, 2016	Dec. 31, 2015
Schedule of activity for noncontrolling interests
Contribution/issuance of noncontrolling interests		$ 11,941	$ 7,282
Distributions to noncontrolling interests		(3,022)	(3,150)
Allocated distributions to noncontrolling interests subject to redemption		(9)	(10)
Net income (loss)		25,830	(3,888)
Other comprehensive loss		(18,062)	(6,560)
Non- controlling Interests
Schedule of activity for noncontrolling interests
Beginning balance		21,318	17,478
Contribution/issuance of noncontrolling interests	$ 11,900	11,941	7,282
Distributions to noncontrolling interests		(3,022)	(3,150)
Allocated distributions to noncontrolling interests subject to redemption		(9)	(10)
Net income (loss)		896	(138)
Other comprehensive loss		(622)	(144)
Ending balance		$ 30,502	$ 21,318