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Net Sales and Long-Lived Assets by Major Geographic Locations (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Net sales | $ 486,842 | $ 444,418 | $ 443,171
Long-lived assets | 136,038 | 119,948 |
UNITED STATES |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Net sales | 430,758 | 426,405 |
Long-lived assets | 133,841 | 118,803 |
International |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Net sales | 56,084 | 18,013 |
Long-lived assets | $ 2,197 | $ 1,145 |

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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + 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) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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