CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Assets
Cash and cash equivalents	$ 55,389	$ 88,575
Receivables, net of allowance for doubtful accounts of $4,428 at 2012 and $4,225 at 2011	387,961	256,749
Inventories	284,324	287,554
Prepaid expenses and other	14,242	15,750
Deferred income taxes	17,939	14,989
Total current assets	759,855	663,617
Property, plant and equipment, net	634,053	640,900
Goodwill	214,156	213,608
Intangible assets, net	45,029	46,715
Deferred income taxes	3,980	3,770
Other assets, net	66,435	75,601
Total assets	1,723,508	1,644,211
Liabilities and Stockholders' Equity
Accounts payable	209,233	168,187
Interest payable	20,839	20,931
Income taxes payable	1,877	1,202
Accrued compensation	19,777	19,743
Other accrued liabilities	59,471	68,825
Total current liabilities	311,197	278,888
Long-term debt	497,665	497,464
Lease financing obligation	109,287	109,899
Liability for unrecognized income tax benefits	19,615	23,711
Deferred income taxes	180,992	181,465
Other non-current liabilities	64,181	64,120
Total liabilities	1,182,937	1,155,547
Commitments and contingencies
Stockholders' equity:
Preferred stock-$0.01 par value; 75,000,000 shares authorized; no shares issued
Common stock-$0.01 par value; 100,000,000 shares authorized; issued and outstanding: 34,279,165 at 2012 and 34,236,402 at 2011	343	342
Additional paid-in capital	486,340	480,530
Accumulated other comprehensive loss, net of tax	(18,161)	(18,151)
Retained earnings	72,049	25,943
Total stockholders' equity	540,571	488,664
Total liabilities and stockholders' equity	$ 1,723,508	$ 1,644,211