CONSOLIDATED STATEMENT OF CHANGES IN EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid In Capital	Accumulated Deficit	Accumulated Other Comprehensive Income	Non-Controlling Interest in Equity of Consolidated Subsidiaries
Beginning balance at Dec. 31, 2015			$ 1,084,757	$ (38,833)	$ 7,130
Comprehensive loss:
Net loss for the period				(2,876)		$ (13,816)
Other comprehensive loss					4,508
Capital contributions						1,261
Transfer of non-controlling interest	$ (2,798)					(2,798)
Equity-based compensation						695
Beginning balance at Dec. 31, 2016	1,165,680	$ 758				111,868
Comprehensive loss:
Net loss for the period	(16,692)
Other comprehensive loss	4,508
Comprehensive income (loss)	(12,184)			(2,876)	4,508	(13,816)
Capital contributions	1,261
Dividends declared	(75,041)		(75,041)
Issuance of common shares	310		310
Equity-based compensation	695
Ending balance at Sep. 30, 2017	$ 1,077,923	$ 758	$ 1,010,026	$ (41,709)	$ 11,638	$ 97,210