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Commitments And Contingencies (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Mar. 31, 2013
Watson Settlement Agreement [Member]
Sep. 30, 2012
Watson Settlement Agreement [Member]
Commitments And Contingencies [Line Items]        
Litigation settlement liability relieved during the quarter     $ 31,932  
Cost of product shipped to Watson's wholesaler affiliate     (4,408)  
Estimated gross-to-net liabilities on product shipped to Watson's wholesaler affiliate     (10,501)  
Watson litigation settlement income, net     2,204  
Net impact to Other (income) expense, net $ 19,227 $ 0 $ 19,227 $ 46,200