XML 58 R43.htm IDEA: XBRL DOCUMENT
v3.22.4

Collaboration Agreements And Business Development Activities - GSK (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 30, 2022 | Dec. 31, 2021 | Jan. 01, 2021
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |
Collaboration agreement percent of royalty on net sale | 3.00% |  |
Collaborative Arrangements with GSK and Royalty Pharma |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |
Royalty expense | $ 58.2 | $ 46.6 | $ 32.7

X
- Definition Collaboration Agreement, Percent Of Royalty On Net Sale + References No definition available. + Details
Name: | exel_CollaborationAgreementPercentOfRoyaltyOnNetSale
Namespace Prefix: | exel_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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 https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227 + Details
Name: | us-gaap_RoyaltyExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_TypeOfArrangementAxis=exel_CollaborativeArrangementsWithGSKAndRoyaltyPharmaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |