Acquisitions (Auxilium Pharmaceuticals, Inc.) (Narrative) (Details) - USD ($)		3 Months Ended
	Jan. 29, 2015	Mar. 31, 2016	Mar. 31, 2015
Business Acquisition [Line Items]
Acquisition-related transaction costs		$ 12,554,000	$ 34,640,000
Amortization of intangible assets		211,669,000	95,269,000
Auxilium Pharmaceuticals, Inc.
Business Acquisition [Line Items]
Aggregate consideration transferred	$ 2,600,000,000
Interest expense			1,100,000
Amortization of intangible assets			6,900,000
Auxilium Pharmaceuticals, Inc. | Acquisition-Related And Integration Items
Business Acquisition [Line Items]
Acquisition-related transaction costs		$ 0	$ 19,400,000