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3. Intangible Assets, Goodwill and Other (Details) (USD $)
6 Months Ended
Jun. 30, 2011
Dec. 31, 2010
Goodwill [Line Items]    
Goodwill $ 420,300,000 $ 391,200,000
Accumulated impairment loss (27,200,000) (27,200,000)
Goodwill, net 393,125,000 363,981,000
Currency fluctuations 29,100,000  
Life Science [Member]
   
Goodwill [Line Items]    
Goodwill 70,700,000 70,700,000
Accumulated impairment loss (27,200,000) (27,200,000)
Goodwill, net 43,500,000 43,500,000
Currency fluctuations 0  
Clinical Diagnostics [Member]
   
Goodwill [Line Items]    
Goodwill 349,600,000 320,500,000
Accumulated impairment loss 0 0
Goodwill, net 349,600,000 320,500,000
Currency fluctuations $ 29,100,000