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Collaboration Agreements (Royalty Revenues under the Collaboration Agreement with GSK) (Details) - USD ($) $ in Millions | 12 Months Ended
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Jan. 01, 2021 | Jan. 03, 2020 | Dec. 28, 2018
Collaborative Arrangements with Glaxo Smith Kline |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |
Royalty expense | $ 32.7 | $ 31.3 | $ 24.0
Collaborative Arrangement with GlaxoSmithKline |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |
Collaboration agreement percent of royalty on net sale | 3.00% |  |

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- Definition Amount of expense related to royalty payments under a contractual arrangement such as payment for mineral and drilling rights and use of technology or intellectual property. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 + Details
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- Details
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- Details
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