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11. Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Segment Reporting Information [Line Items]
Net sales	$ 504,666	$ 516,777	$ 1,004,717	$ 987,974
Income before income taxes	1,120	26,864	21,267	47,059
Life Science [Member]
Segment Reporting Information [Line Items]
Net sales	179,400	180,000	353,600	345,800
Income before income taxes	(23,000)	(5,100)	(41,800)	(8,400)
Clinical Diagnostics [Member]
Segment Reporting Information [Line Items]
Net sales	322,100	333,700	644,400	635,400
Income before income taxes	17,900	23,900	58,900	48,600
All Other Segments [Member]
Segment Reporting Information [Line Items]
Net sales	3,200	3,100	6,700	6,800
Income before income taxes	$ 200	$ (300)	$ 400	$ 100

X

- Definition

Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.

+ 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

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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=63488584&loc=d3e20235-122688

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- Definition

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+ References

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