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4. Intangible Assets, Goodwill and Other (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2015 | Dec. 31, 2014
Goodwill [Line Items] |  |
Goodwill | $ 531,800 | $ 528,600
Accumulated impairment loss | (28,200) | (28,200)
Goodwill, net | 503,588 | 500,441
Currency fluctuations | 3,200 |
Life Science [Member] |  |
Goodwill [Line Items] |  |
Goodwill | 207,500 | 207,700
Accumulated impairment loss | (27,200) | (27,200)
Goodwill, net | 180,300 | 180,500
Currency fluctuations | (200) |
Clinical Diagnostics [Member] |  |
Goodwill [Line Items] |  |
Goodwill | 324,300 | 320,900
Accumulated impairment loss | (1,000) | (1,000)
Goodwill, net | 323,300 | $ 319,900
Currency fluctuations | $ 3,400 |

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
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