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Collaboration Agreements, In-Licensing Arrangements And Business Development Activities - In-Licensing Collaborations (Details) $ in Millions	6 Months Ended
	Jul. 02, 2021 USD ($)
Asset Acquisition [Line Items]
Upfront payment	$ 17.0
Collaborative arrangement, maximum aggregate development milestone payments	58.5
Collaborative arrangement, maximum aggregate regulatory milestone payments	139.0
Collaborative arrangement, maximum aggregate commercial milestone payments	377.5
Collaborative Agreement With GamaMabs Pharma SA
Asset Acquisition [Line Items]
Payments to acquire assets	5.0
Payment upon closing of transaction	9.0
Asset acquisition, maximum aggregate development milestone payments	42.0
Asset acquisition, maximum aggregate regulatory milestone payments	$ 22.5

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The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
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Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
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