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ACQUISITIONS - Harpoon Medical, Inc. (Narrative) (Details) - Harpoon Medical - USD ($) $ in Millions		24 Months Ended
	Dec. 01, 2017	Nov. 30, 2017
Business Acquisition [Line Items]
Purchase price subject to certain adjustments	$ 119.5
Cash previously paid for cost method investment		$ 16.0
Net proceeds from sale of previous ownership		$ 8.0
Potential milestone-driven payments	$ 150.0
Period to make additional pre-specified milestone-driven payments	10 years
Liability for estimated fair value of contingent milestone payment	$ 59.7
Additional research and development expenditures to be incurred prior to product introduction	$ 41.4

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