Litigation (Modafinil Antitrust Litigation and FTC Inquiry) (Narrative) (Details) - Modafinil Antitrust Litigation and FTC Inquiry			3 Months Ended
	Jul. 10, 2015 other_drug_manufacturers	Apr. 27, 2006 other_drug_manufacturers	Jun. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Loss Contingencies [Line Items]
Loss Contingency, Loss in Period			$ 18,000,000.0
Loss Contingency Accrual				$ 14,400,000
Other drug manufacturers
Loss Contingencies [Line Items]
Number of defendants | other_drug_manufacturers	3	4