XML 65 R47.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Revenues - Activities and Ending Reserve Balances for Significant Categories of Discounts and Allowances (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Jan. 03, 2025 | Dec. 29, 2023
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |
Balance at beginning of period | $ 84,840 | $ 77,231
Provision related to sales made in: |  |
Current period | 712,754 | 647,112
Prior periods | (3,903) | (3,458)
Payments and customer credits issued | (706,048) | (636,045)
Balance at end of period | 87,643 | 84,840
Chargebacks, Discounts for Prompt Payment and Other |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |
Balance at beginning of period | 25,221 | 26,881
Provision related to sales made in: |  |
Current period | 470,103 | 419,975
Prior periods | (891) | 295
Payments and customer credits issued | (469,166) | (421,930)
Balance at end of period | 25,267 | 25,221
Other Customer Credits/Fees and Co-pay Assistance |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |
Balance at beginning of period | 19,721 | 14,924
Provision related to sales made in: |  |
Current period | 63,354 | 56,349
Prior periods | (2,044) | (1,222)
Payments and customer credits issued | (56,086) | (50,330)
Balance at end of period | 24,945 | 19,721
Rebates |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |
Balance at beginning of period | 39,898 | 35,426
Provision related to sales made in: |  |
Current period | 179,297 | 170,788
Prior periods | (968) | (2,531)
Payments and customer credits issued | (180,796) | (163,785)
Balance at end of period | $ 37,431 | $ 39,898

X
- Definition Valuation Allowances And Reserves, Additions For Sales In Current Period + References No definition available. + Details
Name: | exel_ValuationAllowancesAndReservesAdditionsForSalesInCurrentPeriod
Namespace Prefix: | exel_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Valuation Allowances And Reserves, Additions For Sales In Prior Period + References No definition available. + Details
Name: | exel_ValuationAllowancesAndReservesAdditionsForSalesInPriorPeriod
Namespace Prefix: | exel_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Valuation Allowances And Reserves, Additions To Provision [Abstract] + References No definition available. + Details
Name: | exel_ValuationAllowancesAndReservesAdditionsToProvisionAbstract
Namespace Prefix: | exel_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_MovementInValuationAllowancesAndReservesRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09(Column B)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-4 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09(Column E)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-4 + Details
Name: | us-gaap_ValuationAllowancesAndReservesBalance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of decrease in valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09(Column D)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-4 + Details
Name: | us-gaap_ValuationAllowancesAndReservesDeductions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_ValuationAllowancesAndReservesTypeAxis=exel_ChargebacksAndDiscountsForPromptPaymentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ValuationAllowancesAndReservesTypeAxis=exel_AllowanceForCustomerCreditsFeesandCoPayAssistanceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ValuationAllowancesAndReservesTypeAxis=exel_AllowanceForProductRebatesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |