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11. Segment Information (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2016 | Mar. 31, 2015
Segment Reporting Information [Line Items] |  |
Net sales | $ 471,197 | $ 472,821
Income before income taxes | 20,195 | 26,694
Life Science [Member] |  |
Segment Reporting Information [Line Items] |  |
Net sales | 165,900 | 155,900
Income before income taxes | (3,300) | (2,400)
Clinical Diagnostics [Member] |  |
Segment Reporting Information [Line Items] |  |
Net sales | 301,700 | 313,600
Income before income taxes | 24,800 | 35,200
All Other Segments [Member] |  |
Segment Reporting Information [Line Items] |  |
Net sales | 3,600 | 3,300
Income before income taxes | $ 300 | $ (100)

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- Definition Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(1)(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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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 + Details
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