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License And Collaboration Agreements (XIAFLEX Out-License Agreements) (Details) - USD ($)
$ in Millions
 1 Months Ended
Jul. 31, 2016
Oct. 31, 2015
Dec. 31, 2010
License And Collaboration Agreements [Line Items]      
Conditional milestone payment capitalized     $ 12.5
XIAFLEX®      
License And Collaboration Agreements [Line Items]      
Conditional milestone payment capitalized   $ 20.0  
Payments to acquire license rights $ 5.5