CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common stock	Additional paid-in capital	Accumulated deficit	Accumulated other comprehensive loss	Non controlling interest
Balance at Dec. 31, 2017	$ 1,021,944	$ 22	$ 1,059,120	$ (39,266)	$ (147)	$ 2,215
Total comprehensive loss	(39,328)			(39,172)	(299)	143
Stock option expense	(98)		(98)
Issuance of common stock	2	2
Amortization of restricted stock units	2,961		2,961
Balance at Mar. 31, 2018	985,481	24	1,061,983	(78,438)	(446)	2,358
Balance at Dec. 31, 2018	1,144,923	37	1,352,388	(210,783)	2,194	1,087
Total comprehensive loss	(21,286)			(21,731)		445
Issuance of common stock from exercise of warrants	1		1
Amortization/cancellation of restricted stock units	4,047		4,047
Balance at Mar. 31, 2019	$ 1,127,685	$ 37	$ 1,356,436	$ (232,514)	$ 2,194	$ 1,532