Consolidated Statements of Comprehensive Income (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Net income (loss)	$ (20,630)	$ 47,862	$ (56,690)	$ 81,917
Total other comprehensive loss, net of tax	(108)	(6,155)	(776)	(7,935)
Comprehensive income (loss)	(20,738)	41,707	(57,466)	73,982
Comprehensive income (loss) attributable to non-controlling interest	(257)	11,291	(784)	18,307
Comprehensive income (loss) attributable to stockholders	(20,481)	30,416	(56,682)	55,675
Interest Rate Swaps
Unrealized holding gain (loss) arising during period	(400)	89	(1,521)	(841)
Loss reclassified to earnings - interest expense	228	97	298	112
Net gain (loss), before tax	(172)	186	(1,223)	(729)
Income tax expense (benefit)	(64)	69	(447)	(270)
Net gain (loss), net of tax	(108)	117	(776)	(459)
Commodity Contracts
Unrealized holding gain (loss) arising during period	0	0	0	6,070
Amortization of unrealized gain on de-designated cash flow hedges - cost of sales	0	(9,955)	0	(17,937)
Net gain (loss), before tax	0	(9,955)	0	(11,867)
Income tax expense (benefit)	0	(3,683)	0	(4,391)
Net gain (loss), net of tax	$ 0	$ (6,272)	$ 0	$ (7,476)