Guarantor Finanical Information Balance Sheet (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash and cash equivalents	$ 8,454	$ 30,829	$ 21,607	$ 30,524
Accounts Receivable, Net, Current	131,003	128,544
Receivables from affiliates	0	0
Inventory, Net	236,932	214,900
Prepaid expenses and other current assets	13,029	16,418
Total current assets	389,418	390,691
Investment in joint venture	37,443	41,879	38,854
Goodwill	12,973	69,289	70,300
Intangible assets, net	56,555	69,489
Prepaid Expense and Other Assets, Noncurrent	18,752	31,780
Investment in subsidiaries	0	0
Receivables from affiliates	0	0
Property, plant and equipment, net	72,835	76,694
Total assets	587,976	679,822	788,806
Accounts payable	68,782	69,577
Payables due to affiliates	0	0
Other current liabilities	27,998	31,367
Current portion of long-term debt	737	397
Total current liabilities	97,517	101,341
Long-term debt, less current portion	309,377	245,599
Payables due to affiliates	0	0
Deferred income taxes	8,360	10,733
Other non-current liabilities	22,402	12,255
Total stockholders’ equity	150,320	309,894	337,340	312,279
Total liabilities and stockholders’ equity	587,976	679,822
Parent
Cash and cash equivalents	511	8,675	4,106	12,110
Accounts Receivable, Net, Current	66,178	67,536
Receivables from affiliates	2,071	2,811
Inventory, Net	142,314	133,139
Prepaid expenses and other current assets	3,490	8,383
Total current assets	214,564	220,544
Investment in joint venture	37,443	41,879
Goodwill	0	41,504
Intangible assets, net	42,772	52,703
Prepaid Expense and Other Assets, Noncurrent	18,766	28,145
Investment in subsidiaries	70,274	119,075
Receivables from affiliates	113,188	87,247
Property, plant and equipment, net	46,094	50,812
Total assets	543,101	641,909
Accounts payable	41,613	41,233
Payables due to affiliates	2,071	2,270
Other current liabilities	18,841	22,801
Current portion of long-term debt	691	371
Total current liabilities	63,216	66,675
Long-term debt, less current portion	307,327	245,561
Payables due to affiliates	0	0
Deferred income taxes	0	7,823
Other non-current liabilities	22,238	11,956
Total stockholders’ equity	150,320	309,894
Total liabilities and stockholders’ equity	543,101	641,909
Guarantors
Cash and cash equivalents	977	495	903	7
Accounts Receivable, Net, Current	19,303	18,305
Receivables from affiliates	81	0
Inventory, Net	19,320	16,357
Prepaid expenses and other current assets	1,033	2,244
Total current assets	40,714	37,401
Investment in joint venture	0	0
Goodwill	12,973	12,973
Intangible assets, net	0	0
Prepaid Expense and Other Assets, Noncurrent	0	0
Investment in subsidiaries	0	0
Receivables from affiliates	36,607	34,637
Property, plant and equipment, net	12,184	12,855
Total assets	102,478	97,866
Accounts payable	8,055	8,274
Payables due to affiliates	0	0
Other current liabilities	3,065	944
Current portion of long-term debt	0	0
Total current liabilities	11,120	9,218
Long-term debt, less current portion	0	0
Payables due to affiliates	5,581	6,579
Deferred income taxes	5,524	7,061
Other non-current liabilities	0	0
Total stockholders’ equity	80,253	75,008
Total liabilities and stockholders’ equity	102,478	97,866
Non-Guarantors
Cash and cash equivalents	6,966	21,659	16,598	18,407
Accounts Receivable, Net, Current	45,522	42,703
Receivables from affiliates	0	0
Inventory, Net	75,366	65,472
Prepaid expenses and other current assets	8,506	5,993
Total current assets	136,360	135,827
Investment in joint venture	0	0
Goodwill	0	14,812
Intangible assets, net	13,783	16,786
Prepaid Expense and Other Assets, Noncurrent	996	3,635
Investment in subsidiaries	0	0
Receivables from affiliates	2,157	1,465
Property, plant and equipment, net	14,557	13,027
Total assets	167,853	185,552
Accounts payable	19,114	20,070
Payables due to affiliates	81	541
Other current liabilities	6,092	7,622
Current portion of long-term debt	46	26
Total current liabilities	25,333	28,259
Long-term debt, less current portion	2,050	38
Payables due to affiliates	146,371	116,770
Deferred income taxes	3,846	(4,151)
Other non-current liabilities	164	299
Total stockholders’ equity	(9,911)	44,337
Total liabilities and stockholders’ equity	167,853	185,552
Eliminations
Cash and cash equivalents	0	0	0	0
Accounts Receivable, Net, Current	0	0
Receivables from affiliates	(2,152)	(2,811)
Inventory, Net	(68)	(68)
Prepaid expenses and other current assets	0	(202)
Total current assets	(2,220)	(3,081)
Investment in joint venture	0	0
Goodwill	0	0
Intangible assets, net	0	0
Prepaid Expense and Other Assets, Noncurrent	(1,010)	0
Investment in subsidiaries	(70,274)	(119,075)
Receivables from affiliates	(151,952)	(123,349)
Property, plant and equipment, net	0	0
Total assets	(225,456)	(245,505)
Accounts payable	0	0
Payables due to affiliates	(2,152)	(2,811)
Other current liabilities	0	0
Current portion of long-term debt	0	0
Total current liabilities	(2,152)	(2,811)
Long-term debt, less current portion	0	0
Payables due to affiliates	(151,952)	(123,349)
Deferred income taxes	(1,010)	0
Other non-current liabilities	0	0
Total stockholders’ equity	(70,342)	(119,345)
Total liabilities and stockholders’ equity	$ (225,456)	$ (245,505)