CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
NET SALES:
Related parties	$ 1,178,631	$ 1,867,711	$ 1,262,101
Third-party customers	140,463	82,146	668,941
Sales Revenue – net	1,319,094	1,949,857	1,931,042
Cost of goods sold	1,330,136	1,908,544	1,729,243
Gross profit (loss)	(11,042)	41,313	201,799
Selling, general and administrative expenses	40,264	42,115	49,195
Helguvik impairment	152,220	0	0
Ravenswood charges	26,830	30,850	0
Other operating expense - net	3,857	7,436	12,481
Operating income (loss)	(234,213)	(39,088)	140,123
Interest expense	(22,216)	(21,954)	(22,015)
Interest income	758	339	301
Net gain on forward and derivative contracts	3,487	1,600	179
Unrealized gain on fair value of contingent consideration	0	18,337	7,943
Gain on remeasurement of equity investment	0	0	15,955
Other income (expense) - net	1,319	(356)	991
Income (loss) before income taxes and equity in earnings of joint ventures	(250,865)	(41,122)	143,477
Income tax expense	(2,824)	(9,276)	(18,308)
Income (loss) before equity in earnings of joint ventures	(253,689)	(50,398)	125,169
BHH impairment	0	(11,584)	0
Equity in earnings of joint ventures	1,274	2,672	1,305
Net income (loss)	$ (252,415)	$ (59,310)	$ 126,474
INCOME (LOSS) PER COMMON SHARE:
Basic (in dollars per share)	$ (2.90)	$ (0.68)	$ 1.31
Diluted (in dollars per share)	$ (2.90)	$ (0.68)	$ 1.30