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Quarterly Results - Schedule of Net Income (Loss) and Earnings (Loss) Per Share (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended | 12 Months Ended
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Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Selected Quarterly Financial Information [Abstract] |  |  |  |  |  |  |  |  |  |  |
Net sales | $ 436,261 us-gaap_SalesRevenueGoodsNet | $ 465,092 us-gaap_SalesRevenueGoodsNet | $ 445,341 us-gaap_SalesRevenueGoodsNet | $ 455,721 us-gaap_SalesRevenueGoodsNet | $ 434,811 us-gaap_SalesRevenueGoodsNet | $ 456,648 us-gaap_SalesRevenueGoodsNet | $ 425,967 us-gaap_SalesRevenueGoodsNet | $ 405,189 us-gaap_SalesRevenueGoodsNet | $ 1,802,415 us-gaap_SalesRevenueGoodsNet | $ 1,722,615 us-gaap_SalesRevenueGoodsNet | $ 1,577,788 us-gaap_SalesRevenueGoodsNet
Gross profit | 58,164 us-gaap_GrossProfit | 80,513 us-gaap_GrossProfit | 41,437 us-gaap_GrossProfit | 55,040 us-gaap_GrossProfit | 54,406 us-gaap_GrossProfit | 66,039 us-gaap_GrossProfit | 40,840 us-gaap_GrossProfit | 57,375 us-gaap_GrossProfit | 235,154 us-gaap_GrossProfit | 218,660 us-gaap_GrossProfit | 213,649 us-gaap_GrossProfit
Net Income | $ 19,557 us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted | $ 30,372 us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted | $ 4,669 us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted | $ 14,648 us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted | $ 16,477 us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted | $ 34,119 us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted | $ 933 us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted | $ 15,629 us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted |  |  |
Diluted earnings per share | $ 0.45 us-gaap_EarningsPerShareDiluted | $ 0.69 us-gaap_EarningsPerShareDiluted | $ 0.11 us-gaap_EarningsPerShareDiluted | $ 0.33 us-gaap_EarningsPerShareDiluted | $ 0.37 us-gaap_EarningsPerShareDiluted | $ 0.77 us-gaap_EarningsPerShareDiluted | $ 0.02 us-gaap_EarningsPerShareDiluted | $ 0.36 us-gaap_EarningsPerShareDiluted | $ 1.57 us-gaap_EarningsPerShareDiluted | $ 1.52 us-gaap_EarningsPerShareDiluted | $ 1.36 us-gaap_EarningsPerShareDiluted

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- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1252-109256 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.21) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 18 -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 20 -Article 5 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 21 -Article 9 + Details
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- Definition Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1,2) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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- Definition Net Income or Loss Available to Common Stockholders plus adjustments resulting from the assumption that dilutive convertible securities were converted, options or warrants were exercised, or that other shares were issued upon the satisfaction of certain conditions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1505-109256 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1377-109256 + Details
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