v2.4.0.6
Restructuring (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
CVT/Cardiovascular Restructuring [Member] | Selling, General And Administrative Expenses [Member]
     
Restructuring Cost and Reserve [Line Items]      
Restructuring and related cost   $ 10.6 $ 26.2
Total amount to be incurred in connection with our restructuring plan 43.5    
CVT/Cardiovascular Restructuring [Member] | Research Development Expenses [Member]
     
Restructuring Cost and Reserve [Line Items]      
Restructuring and related cost   3.4 25.7
Total amount to be incurred in connection with our restructuring plan 29.1    
CVT/Cardiovascular Restructuring [Member] | Facilities-Related Costs [Member]
     
Restructuring Cost and Reserve [Line Items]      
Restructuring and related cost 6.7    
Durham Restructuring [Member] | Selling, General And Administrative Expenses [Member]
     
Restructuring Cost and Reserve [Line Items]      
Restructuring and related cost   14.6  
Durham Restructuring [Member] | Research Development Expenses [Member]
     
Restructuring Cost and Reserve [Line Items]      
Restructuring and related cost   $ 10.4