CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Operating activities
Net loss	$ (64,930,000)	$ (59,504,000)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation and amortization	36,499,000	40,893,000
Provision for doubtful accounts	1,202,000	267,000
Deferred income taxes	(35,275,000)	(30,354,000)
Lower of cost or market inventory adjustment	115,000	4,372,000
Loss (gain) on disposal or impairment of assets	910,000	(148,000)
Foreign currency transaction loss, net	(147,000)	(173,000)
Stock compensation expense	4,814,000	6,063,000
Change in fair value of derivative instruments	(4,640,000)	11,730,000
Changes in operating assets and liabilities:
Trade accounts and other receivables	28,379,000	71,870,000
Inventories	992,000	20,042,000
Prepaid expenses and other current assets	1,508,000	239,000
Long-term other assets	151,000	1,329,000
Accounts payable	(4,430,000)	(6,804,000)
Accrued expenses	(8,338,000)	(8,776,000)
Other long-term liabilities	859,000
Income tax receivable, net	37,046,000	17,083,000
Net cash (used in) provided by operating activities	(5,285,000)	68,129,000
Investing activities
Capital expenditures	(6,554,000)	(51,333,000)
Net cash used in investing activities	(6,554,000)	(51,333,000)
Financing activities
Proceeds from long-term debt		70,000,000
Repayments on long-term debt	(29,066,000)	(7,000,000)
Repayments on notes payable	(458,000)
Payments of debt issuance costs	(339,000)
Proceeds from notes payable, related parties	25,000,000
Dividends paid		(12,339,000)
Purchase of common stock	(443,000)	(551,000)
Net cash provided by financing activities	40,258,000	50,110,000
Effect of exchange rate changes on cash	714,000	(510,000)
Net increase in cash and cash equivalents	29,133,000	66,396,000
Cash and cash equivalents at beginning of period	78,866,000	24,298,000
Cash and cash equivalents at end of period	107,999,000	90,694,000
Supplemental cash flow information
Interest paid	3,456,000	1,431,000
Income taxes paid	0	$ 0
ATM Program
Financing activities
Proceeds from sale of common stock under ATM program	$ 45,564,000