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Acquisitions, Dispositions, and Deconsolidations - Life Sciences Segment (Details) - BeneVir - Life Sciences Segment
Jun. 08, 2018
USD ($)
Business Acquisition [Line Items]  
Payment received $ 72,800,000
Consideration paid 106,700,000
Cash payment to be received upon release of escrow 9,200,000
Payment to be received upon achievement of specified development milestones 512,200,000.0
Pansend  
Business Acquisition [Line Items]  
Payment received 93,400,000
Cash payment held in escrow 13,300,000
Gain on sale of business 102,100,000
Payment to be received upon achievement of specified development milestones 189,700,000.0
Payments to be received upon achievement of specified levels of annual net sales of licensed products 493,100,000.0
Pansend | Non-controlling Interest  
Business Acquisition [Line Items]  
Gain on sale of business $ 21,700,000
Janssen Biotech, Inc.  
Business Acquisition [Line Items]  
Percentage of ownership interest acquired 75.90%
Cash paid in acquisition $ 140,000,000