Guarantor Finanical Information Balance Sheet (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Mar. 31, 2014
Dec. 31, 2013
Cash and cash equivalents $ 13,366 $ 8,454 $ 25,708 $ 30,829
Accounts receivable, less allowance for doubtful accounts 129,204 131,003    
Receivables from affiliates 0 0    
Inventories 243,331 236,932    
Prepaid expenses and other current assets 16,172 13,029    
Total current assets 402,073 389,418    
Investment in joint venture 38,003 37,443    
Goodwill 12,973 12,973    
Intangible assets, net 52,695 56,555    
Other assets 17,996 18,752    
Investment in subsidiaries 0 0    
Receivables from affiliates 0 0    
Property, plant and equipment, net 68,536 72,835    
Total assets 592,276 587,976    
Accounts payable 85,998 68,782    
Payables due to affiliates 0 0    
Other current liabilities 36,539 27,998    
Current portion of long-term debt 734 737    
Total current liabilities 123,271 97,517    
Long-term debt, less current portion 313,239 309,377    
Payables due to affiliates 0 0    
Deferred income taxes 6,585 8,360    
Other non-current liabilities 22,168 22,402    
Stockholders’ equity (deficit) 127,013 150,320    
Total liabilities and stockholders’ equity 592,276 587,976    
Parent        
Cash and cash equivalents 3,947 511 3,893 8,675
Accounts receivable, less allowance for doubtful accounts 63,995 66,178    
Receivables from affiliates 1,154 2,071    
Inventories 144,964 142,314    
Prepaid expenses and other current assets 5,734 3,490    
Total current assets 219,794 214,564    
Investment in joint venture 38,003 37,443    
Goodwill 0 0    
Intangible assets, net 40,480 42,772    
Other assets 19,431 18,766    
Investment in subsidiaries 58,142 70,274    
Receivables from affiliates 126,815 113,188    
Property, plant and equipment, net 43,027 46,094    
Total assets 545,692 543,101    
Accounts payable 53,995 41,613    
Payables due to affiliates 1,154 2,071    
Other current liabilities 29,609 18,841    
Current portion of long-term debt 691 691    
Total current liabilities 85,449 63,216    
Long-term debt, less current portion 311,201 307,327    
Payables due to affiliates 0 0    
Deferred income taxes 0 0    
Other non-current liabilities 22,029 22,238    
Stockholders’ equity (deficit) 127,013 150,320    
Total liabilities and stockholders’ equity 545,692 543,101    
Guarantors        
Cash and cash equivalents 970 977 1,350 495
Accounts receivable, less allowance for doubtful accounts 20,903 19,303    
Receivables from affiliates 113 81    
Inventories 19,720 19,320    
Prepaid expenses and other current assets 1,060 1,033    
Total current assets 42,766 40,714    
Investment in joint venture 0 0    
Goodwill 12,973 12,973    
Intangible assets, net 0 0    
Other assets 0 0    
Investment in subsidiaries 0 0    
Receivables from affiliates 39,249 36,607    
Property, plant and equipment, net 11,858 12,184    
Total assets 106,846 102,478    
Accounts payable 11,593 8,055    
Payables due to affiliates 0 0    
Other current liabilities 2,281 3,065    
Current portion of long-term debt 0 0    
Total current liabilities 13,874 11,120    
Long-term debt, less current portion 0 0    
Payables due to affiliates 6,194 5,581    
Deferred income taxes 5,524 5,524    
Other non-current liabilities 0 0    
Stockholders’ equity (deficit) 81,254 80,253    
Total liabilities and stockholders’ equity 106,846 102,478    
Non-Guarantors        
Cash and cash equivalents 8,449 6,966 20,465 21,659
Accounts receivable, less allowance for doubtful accounts 44,306 45,522    
Receivables from affiliates 0 0    
Inventories 78,715 75,366    
Prepaid expenses and other current assets 9,378 8,506    
Total current assets 140,848 136,360    
Investment in joint venture 0 0    
Goodwill 0 0    
Intangible assets, net 12,215 13,783    
Other assets 997 996    
Investment in subsidiaries 0 0    
Receivables from affiliates 0 2,157    
Property, plant and equipment, net 13,651 14,557    
Total assets 167,711 167,853    
Accounts payable 20,410 19,114    
Payables due to affiliates 113 81    
Other current liabilities 4,649 6,092    
Current portion of long-term debt 43 46    
Total current liabilities 25,215 25,333    
Long-term debt, less current portion 2,038 2,050    
Payables due to affiliates 159,870 146,371    
Deferred income taxes 3,493 3,846    
Other non-current liabilities 139 164    
Stockholders’ equity (deficit) (23,044) (9,911)    
Total liabilities and stockholders’ equity 167,711 167,853    
Eliminations        
Cash and cash equivalents 0 0 0 0
Accounts receivable, less allowance for doubtful accounts 0 0    
Receivables from affiliates (1,267) (2,152)    
Inventories (68) (68)    
Prepaid expenses and other current assets 0 0    
Total current assets (1,335) (2,220)    
Investment in joint venture 0 0    
Goodwill 0 0    
Intangible assets, net 0 0    
Other assets (2,432) (1,010)    
Investment in subsidiaries (58,142) (70,274)    
Receivables from affiliates (166,064) (151,952)    
Property, plant and equipment, net 0 0    
Total assets (227,973) (225,456)    
Accounts payable 0 0    
Payables due to affiliates (1,267) (2,152)    
Other current liabilities 0 0    
Current portion of long-term debt 0 0    
Total current liabilities (1,267) (2,152)    
Long-term debt, less current portion 0 0    
Payables due to affiliates (166,064) (151,952)    
Deferred income taxes (2,432) (1,010)    
Other non-current liabilities 0 0    
Stockholders’ equity (deficit) (58,210) (70,342)    
Total liabilities and stockholders’ equity $ (227,973) $ (225,456)