Customer and Supplier Concentration (Details) - Customer Concentration Risk [Member] - item	3 Months Ended		12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Revenue, Major Customer [Line Items]
Number of major customers that are wholesale distributors	3
Accounts receivable
Revenue, Major Customer [Line Items]
Number of major customers	5		5
Net Revenues
Revenue, Major Customer [Line Items]
Number of major customers	5	5
Allergan plc | Accounts receivable
Revenue, Major Customer [Line Items]
Major Customers	14.00%		12.00%
Allergan plc | Net Revenues
Revenue, Major Customer [Line Items]
Major Customers	22.00%	23.00%
AmerisourceBergen | Accounts receivable
Revenue, Major Customer [Line Items]
Major Customers	18.00%		12.00%
AmerisourceBergen | Net Revenues
Revenue, Major Customer [Line Items]
Major Customers	19.00%	16.00%
Cardinal Health | Accounts receivable
Revenue, Major Customer [Line Items]
Major Customers	27.00%		20.00%
Cardinal Health | Net Revenues
Revenue, Major Customer [Line Items]
Major Customers	21.00%	18.00%
MannKind Corporation | Accounts receivable
Revenue, Major Customer [Line Items]
Major Customers			13.00%
MannKind Corporation | Net Revenues
Revenue, Major Customer [Line Items]
Major Customers		10.00%
McKesson | Accounts receivable
Revenue, Major Customer [Line Items]
Major Customers	16.00%		21.00%
McKesson | Net Revenues
Revenue, Major Customer [Line Items]
Major Customers	20.00%	19.00%