Legal Proceedings (Narrative) (Details) $ in Millions			1 Months Ended		6 Months Ended
	Oct. 02, 2013 lawsuit	Jun. 07, 2013	Nov. 30, 2015 employee	Jul. 31, 2014 shareholder	Jun. 30, 2016 USD ($)
Loss Contingencies [Line Items]
Number of civil qui tam actions | lawsuit	1
Final decision of patent dispute, in years (no later than)					1 year
Number of shareholders who demanded corporate action | shareholder				2
Loss contingency accrual | $					$ 100.0
Litigation Related to Sales of THALOMID and REVLIMID
Loss Contingencies [Line Items]
Claim filed on behalf of, number of current employees			8
Claim filed on behalf of, number of former employees			4
Children's Medical Center Corporation | REVLIMID royalty
Loss Contingencies [Line Items]
Royalty rate		0.01
Children's Medical Center Corporation | POMALYST/IMNOVID royalty
Loss Contingencies [Line Items]
Royalty rate		0.025