Contingencies (Modafinil Antitrust Litigation and FTC Inquiry) (Narrative) (Details) - Modafinil Antitrust Litigation and FTC Inquiry $ in Millions	Jul. 10, 2015 other_drug_manufacturers	Apr. 27, 2006 other_drug_manufacturers	Sep. 30, 2015 USD ($)
Loss Contingencies [Line Items]
Loss contingency accrual			$ 16.0
Other drug manufacturers
Loss Contingencies [Line Items]
Number of defendants | other_drug_manufacturers	3	4