CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 7,679	$ 4,751
Trade accounts receivable, net of allowances of $2,715 and $2,368 as of September 30, 2013 and December 31, 2012, respectively	109,532	84,034
Inventories	26,890	25,001
Deferred income taxes	2,674	2,835
Prepaid expenses	3,819	3,651
Other receivables	2,960	4,414
Other current assets	2,161	3,080
Total current assets	155,715	127,766
Property, plant and equipment, net of accumulated depreciation, depletion, and amortization of $50,759 and $38,273 as of September 30, 2013 and December 31, 2012, respectively	127,932	120,871
Goodwill	11,726	10,717
Purchased intangible assets, net	13,443	15,033
Other assets	3,471	5,337
Total assets	312,287	279,724
Current liabilities:
Current maturities of long-term debt	2,337	1,861
Accounts payable	59,391	48,880
Accrued liabilities	48,784	36,430
Derivative liabilities	17,555	22,030
Total current liabilities	128,067	109,201
Long-term debt, net of current maturities	81,722	61,598
Other long-term obligations and deferred credits	10,936	13,114
Deferred income taxes	3,126	3,287
Total liabilities	223,851	187,200
Commitments and contingencies (Note 17)
Equity:
Preferred stock	0	0
Common stock	14	13
Additional paid-in capital	151,968	136,451
Accumulated deficit	(58,187)	(43,196)
Treasury stock, at cost	(5,359)	(744)
Total stockholders’ equity	88,436	92,524
Total liabilities and equity	$ 312,287	$ 279,724