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Summary of Business Sales Segmentation as per Location (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012
Net Sales: |  |  |  |
Total Sales | $ 97,201 | $ 89,836 | $ 305,499 | $ 261,928
US |  |  |  |
Net Sales: |  |  |  |
Total Sales | 79,425 | 74,036 | 250,367 | 209,371
International |  |  |  |
Net Sales: |  |  |  |
Total Sales | $ 17,776 | $ 15,800 | $ 55,132 | $ 52,557

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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=26872669&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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