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11. Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Segment Reporting Information [Line Items]
Net sales	$ 486,277	$ 485,121
Segment profit (loss)	54,366	67,118
Life Science [Member]
Segment Reporting Information [Line Items]
Net sales	154,800	154,500
Segment profit (loss)	(3,900)	3,100
Clinical Diagnostics [Member]
Segment Reporting Information [Line Items]
Net sales	327,200	327,200
Segment profit (loss)	45,700	48,000
All Other Segments [Member]
Segment Reporting Information [Line Items]
Net sales	4,300	3,400
Segment profit (loss)	900	200
Reportable Segment [Member]
Segment Reporting Information [Line Items]
Segment profit (loss)	$ 42,700	$ 51,300

X

- Definition

The net result for the period of deducting operating expenses from operating revenues.

+ References

No definition available.

+ Details

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X

- 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 SEC

-Name Regulation S-X (SX)

-Number 210

-Article 5

-Section 03

-Paragraph 1



Reference 2: 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

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- Details

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