Legal Proceedings (Narrative) (Details)					1 Months Ended		3 Months Ended
	Jul. 28, 2015 lawsuit	Apr. 11, 2014 lawsuit	Oct. 02, 2013 lawsuit	Jun. 07, 2013	Jul. 31, 2014 number_of_stockholders	Feb. 28, 2014 plaintiff lawsuit	Mar. 31, 2016 USD ($)
Loss Contingencies [Line Items]
Number of civil qui tam actions	4	4	1
Claims dismissed		2
Final decision of patent dispute, in years (no later than)							1 year
Number of shareholders who demanded corporate action | number_of_stockholders					2
Litigation Related to Sales of THALOMID and REVLIMID
Loss Contingencies [Line Items]
Number of civil qui tam actions						3
Number of plaintiffs | plaintiff						3
Children's Medical Center Corporation
Loss Contingencies [Line Items]
Range of possible loss, minimum | $							$ 0
Range of possible loss, maximum | $							$ 156,500,000.0
Children's Medical Center Corporation | REVLIMID royalty
Loss Contingencies [Line Items]
Royalty rate (as a percent)				0.01
Children's Medical Center Corporation | POMALYST/IMNOVID royalty
Loss Contingencies [Line Items]
Royalty rate (as a percent)				0.025