Contingencies (Modafinil Antitrust Litigation and FTC Inquiry) (Narrative) (Details) $ in Millions	Jul. 10, 2015 other_drug_manufacturers	Apr. 27, 2006 other_drug_manufacturers	Apr. 20, 2016	Mar. 31, 2016 USD ($)
Loss Contingencies [Line Items]
Loss contingency accrual				$ 10.0
Modafinil Antitrust Litigation and FTC Inquiry
Loss Contingencies [Line Items]
Loss contingency accrual				$ 16.0
Modafinil Antitrust Litigation and FTC Inquiry | Other drug manufacturers
Loss Contingencies [Line Items]
Number of defendants | other_drug_manufacturers	3	4
Number of other actions consolidated			4