SUPPLEMENTAL GUARANTOR INFORMATION (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011	Mar. 31, 2011	Dec. 31, 2010
Supplemental Condensed Consolidated Balance Sheet Information
Cash and cash equivalents	$ 38,991	$ 88,575	$ 33,498	$ 122,758
Receivables, net	404,479	256,749
Inventories	336,999	287,554
Prepaid expenses and other	16,760	15,750
Deferred income taxes	16,203	14,989
Total current assets	813,432	663,617
Property, plant and equipment, net	634,800	640,900
Goodwill	216,945	213,608
Intangibles, net	45,928	46,715
Deferred income taxes	3,847	3,770
Other assets	72,408	75,601
Total assets	1,787,360	1,644,211
Current portion of long-term debt	29,000
Accounts payable	249,783	168,187
Interest payable	9,657	20,931
Income taxes payable	17,909	1,202
Accrued compensation	15,049	19,743
Other accrued liabilities	58,391	68,825
Total current liabilities	379,789	278,888
Long-term debt	497,563	497,464
Lease financing obligation	112,119	109,899
Liability for unrecognized income tax benefits	22,309	23,711
Deferred income taxes	183,384	181,465
Other non-current liabilities	64,090	64,120
Total liabilities	1,259,254	1,155,547
Total stockholders' equity (deficit)	528,106	488,664
Total liabilities and stockholders' equity	1,787,360	1,644,211
Parent Company
Supplemental Condensed Consolidated Balance Sheet Information
Prepaid expenses and other	108	146
Total current assets	108	146
Property, plant and equipment, net	1,330	1,292
Long term receivables - affiliates	456,858	447,661
Other assets	14,944	15,646
Investment in subsidiaries	1,291,123	1,226,725
Total assets	1,764,363	1,691,470
Current portion of long-term debt	29,000
Accounts payable	572,650	572,600
Interest payable	9,657	20,930
Income taxes payable	(1,250)	(1,213)
Other accrued liabilities	1,176	419
Total current liabilities	611,233	592,736
Long-term debt	497,563	497,464
Deferred income taxes	19,515	16,054
Other non-current liabilities	107,946	96,552
Total liabilities	1,236,257	1,202,806
Total stockholders' equity (deficit)	528,106	488,664
Total liabilities and stockholders' equity	1,764,363	1,691,470
Guarantor Subsidiaries
Supplemental Condensed Consolidated Balance Sheet Information
Cash and cash equivalents	20,791	43,374	29,356	93,681
Receivables, net	909,574	776,859
Inventories	230,920	207,854
Prepaid expenses and other	12,159	12,264
Deferred income taxes	15,978	14,769
Total current assets	1,189,422	1,055,120
Property, plant and equipment, net	414,388	422,302
Goodwill	105,043	103,959
Intangibles, net	43,447	44,284
Other assets	48,958	51,296
Total assets	1,801,258	1,676,961
Accounts payable	214,298	148,573
Income taxes payable	17,924	1,213
Accrued compensation	5,549	11,572
Other accrued liabilities	29,358	43,691
Total current liabilities	267,129	205,049
Liability for unrecognized income tax benefits	5,506	7,126
Deferred income taxes	163,869	165,411
Other non-current liabilities	64,719	63,734
Total liabilities	501,223	441,320
Total stockholders' equity (deficit)	1,300,035	1,235,641
Total liabilities and stockholders' equity	1,801,258	1,676,961
Non-Guarantor Subsidiaries
Supplemental Condensed Consolidated Balance Sheet Information
Cash and cash equivalents	18,200	45,201	4,142	29,077
Receivables, net	82,444	62,469
Inventories	106,079	79,700
Prepaid expenses and other	4,493	3,340
Deferred income taxes	225	220
Total current assets	211,441	190,930
Property, plant and equipment, net	219,082	217,306
Goodwill	111,902	109,649
Intangibles, net	2,481	2,431
Deferred income taxes	3,847	3,770
Other assets	8,506	8,659
Total assets	557,259	532,745
Accounts payable	40,974	20,193
Interest payable		1
Income taxes payable	1,235	1,202
Accrued compensation	9,500	8,171
Other accrued liabilities	27,857	24,715
Total current liabilities	79,566	54,282
Lease financing obligation	112,119	109,899
Long-term payables - affiliates	466,258	457,061
Liability for unrecognized income tax benefits	16,803	16,585
Other non-current liabilities	2,073	2,071
Total liabilities	676,819	639,898
Total stockholders' equity (deficit)	(119,560)	(107,153)
Total liabilities and stockholders' equity	557,259	532,745
Eliminations
Supplemental Condensed Consolidated Balance Sheet Information
Receivables, net	(587,539)	(582,579)
Total current assets	(587,539)	(582,579)
Long term receivables - affiliates	(456,858)	(447,661)
Investment in subsidiaries	(1,291,123)	(1,226,725)
Total assets	(2,335,520)	(2,256,965)
Accounts payable	(578,139)	(573,179)
Total current liabilities	(578,139)	(573,179)
Long-term payables - affiliates	(466,258)	(457,061)
Other non-current liabilities	(110,648)	(98,237)
Total liabilities	(1,155,045)	(1,128,477)
Total stockholders' equity (deficit)	(1,180,475)	(1,128,488)
Total liabilities and stockholders' equity	$ (2,335,520)	$ (2,256,965)
9.0 percent senior secured notes
Supplemental Condensed Consolidated Balance Sheet Information
Interest rate (as a percent)	9.00%