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Litigation (Details) - patent
9 Months Ended
Sep. 30, 2016
May 31, 2016
Litigation    
Number of patents on which district court decision is adverse   8
Pending Litigation    
Litigation    
Maximum period for which the FDA is automatically precluded from approving Watson's ANDA 30 months  
Maximum period for which the FDA is automatically precluded from approving Actavis' ANDA 30 months  
Number of days for supply of treprostinil under FDA approval 2 days