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3. Intangible Assets, Goodwill and Other (Details) (USD $)
9 Months Ended
Sep. 30, 2011
Dec. 31, 2010
Goodwill [Line Items]  
Goodwill$ 398,400,000$ 391,200,000
Accumulated impairment loss(27,200,000)(27,200,000)
Goodwill, net371,227,000363,981,000
Currency fluctuations7,200,000 
Life Science [Member]
  
Goodwill [Line Items]  
Goodwill70,700,00070,700,000
Accumulated impairment loss(27,200,000)(27,200,000)
Goodwill, net43,500,00043,500,000
Currency fluctuations0 
Clinical Diagnostics [Member]
  
Goodwill [Line Items]  
Goodwill327,700,000320,500,000
Accumulated impairment loss00
Goodwill, net327,700,000320,500,000
Currency fluctuations$ 7,200,000