XML 47 R35.htm IDEA: XBRL DOCUMENT
v3.25.2

Sale of Future Royalties - Narrative (Details) - USD ($) | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | --- | ---
May 31, 2024 | Sep. 30, 2022 | Oct. 31, 2021 | Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024 | Jan. 01, 2021
Liabilities Related To Sale Of Future Royalties [Line Items] |  |  |  |  |  |  |  |  |
Collaboration revenue |  |  |  | $ 22,263,000 | $ 10,971,000 | $ 50,034,000 | $ 18,150,000 |  |
Liability related to sale of future royalties |  |  |  | 331,361,000 |  | 331,361,000 |  | $ 353,426,000 |
Non-cash interest expense |  |  |  | $ 19,606,000 | 10,953,000 | $ 37,667,000 | 17,270,000 |  |
Jemperli Royalty Monetization Agreement |  |  |  |  |  |  |  |  |
Liabilities Related To Sale Of Future Royalties [Line Items] |  |  |  |  |  |  |  |  |
Net of proceeds |  |  | $ 299,500,000 |  |  |  |  |  |
Effective interest rate (as a percent) |  |  |  | 28.90% |  | 28.90% |  |  |
Non-cash interest expense and amortization of issuance costs |  |  |  | $ 19,300,000 | 10,700,000 | $ 37,200,000 | 16,800,000 |  |
Non-cash interest expense |  |  |  |  |  | 37,106,000 |  |  |
Jemperli Royalty Monetization Agreement | Sagard |  |  |  |  |  |  |  |  |
Liabilities Related To Sale Of Future Royalties [Line Items] |  |  |  |  |  |  |  |  |
Proceeds from sale of future royalties |  |  | 250,000,000 |  |  |  |  |  |
Royalties and milestones received |  |  |  | 121,500,000 |  | 121,500,000 |  |  |
Issuance costs related to the sale of future royalties |  |  | 400,000 |  |  |  |  |  |
Jemperli Royalty Monetization Agreement | Sagard | By the end of 2026 |  |  |  |  |  |  |  |  |
Liabilities Related To Sale Of Future Royalties [Line Items] |  |  |  |  |  |  |  |  |
Royalties and milestones, agreement amount to be received |  |  | 600,000,000 |  |  |  |  |  |
Jemperli Royalty Monetization Agreement | Sagard | During 2027 |  |  |  |  |  |  |  |  |
Liabilities Related To Sale Of Future Royalties [Line Items] |  |  |  |  |  |  |  |  |
Royalties and milestones, agreement amount to be received |  |  | 675,000,000 |  |  |  |  |  |
Jemperli Royalty Monetization Agreement | GSK |  |  |  |  |  |  |  |  |
Liabilities Related To Sale Of Future Royalties [Line Items] |  |  |  |  |  |  |  |  |
Collaboration revenue |  |  |  | 21,100,000 | 10,100,000 | 38,400,000 | 16,300,000 |  |
Zejula Royalty Monetization Agreement |  |  |  |  |  |  |  |  |
Liabilities Related To Sale Of Future Royalties [Line Items] |  |  |  |  |  |  |  |  |
Issuance costs related to the sale of future royalties |  | $ 200,000 |  |  |  |  |  |  |
Net of proceeds |  | 34,800,000 |  |  |  |  |  |  |
Non-cash interest expense |  |  |  |  |  | 491,000 |  |  |
Zejula Royalty Monetization Agreement | GSK |  |  |  |  |  |  |  |  |
Liabilities Related To Sale Of Future Royalties [Line Items] |  |  |  |  |  |  |  |  |
Collaboration revenue |  |  |  | 1,100,000 | 900,000 | 2,000,000 | 1,900,000 |  |
Settlement agreement rate (as a percent) |  |  |  |  |  |  |  |  | 0.50%
Non-cash interest expense |  |  |  | $ 300,000 | $ 200,000 | $ 500,000 | $ 400,000 |  |
Zejula Royalty Monetization Agreement | DRI Healthcare Trust |  |  |  |  |  |  |  |  |
Liabilities Related To Sale Of Future Royalties [Line Items] |  |  |  |  |  |  |  |  |
Proceeds from sale of future royalties |  | 35,000,000 |  |  |  |  |  |  |
Royalties and milestones, agreement amount to be received |  | 10,000,000 |  |  |  |  |  |  |
Liability related to sale of future royalties |  | $ 35,000,000 |  |  |  |  |  |  |
Jemperli Royalty Monetization Agreement Amendment 1 | Sagard |  |  |  |  |  |  |  |  |
Liabilities Related To Sale Of Future Royalties [Line Items] |  |  |  |  |  |  |  |  |
Proceeds from sale of future royalties | $ 50,000,000 |  |  |  |  |  |  |  |
Issuance costs related to the sale of future royalties | $ 100,000 |  |  |  |  |  |  |  |
JEMPERLI Royalty Monetization Agreement | Sagard |  |  |  |  |  |  |  |  |
Liabilities Related To Sale Of Future Royalties [Line Items] |  |  |  |  |  |  |  |  |
Rights retained |  |  | 75,000,000 |  |  |  |  |  |
Royalties agreement, maximum annual royalty payout capacity |  |  | $ 1,000,000,000 |  |  |  |  |  |

X
- Definition Advance Future Royalties, Aggregate Additional Payment + References No definition available. + Details
Name: | anab_AdvanceFutureRoyaltiesAggregateAdditionalPayment
Namespace Prefix: | anab_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Advance Future Royalties, Annual Sales Threshold + References No definition available. + Details
Name: | anab_AdvanceFutureRoyaltiesAnnualSalesThreshold
Namespace Prefix: | anab_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Advance Future Royalties, Interest Rate, Effective Percentage + References No definition available. + Details
Name: | anab_AdvanceFutureRoyaltiesInterestRateEffectivePercentage
Namespace Prefix: | anab_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Advance Future Royalties, Issuance Costs + References No definition available. + Details
Name: | anab_AdvanceFutureRoyaltiesIssuanceCosts
Namespace Prefix: | anab_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Advance Future Royalties, Liability, Noncurrent + References No definition available. + Details
Name: | anab_AdvanceFutureRoyaltiesLiabilityNoncurrent
Namespace Prefix: | anab_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Advance Future Royalties, Liability, Noncurrent, Net + References No definition available. + Details
Name: | anab_AdvanceFutureRoyaltiesLiabilityNoncurrentNet
Namespace Prefix: | anab_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Advance Future Royalties, Minimum Global Net Sales, Rate + References No definition available. + Details
Name: | anab_AdvanceFutureRoyaltiesMinimumGlobalNetSalesRate
Namespace Prefix: | anab_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Advance Future Royalties, Retained Rights After Annual Sales Threshold Exceeded + References No definition available. + Details
Name: | anab_AdvanceFutureRoyaltiesRetainedRightsAfterAnnualSalesThresholdExceeded
Namespace Prefix: | anab_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Cumulative Repayment Of Advance Future Royalty And Milestones + References No definition available. + Details
Name: | anab_CumulativeRepaymentOfAdvanceFutureRoyaltyAndMilestones
Namespace Prefix: | anab_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Liabilities Related To Sale Of Future Royalties + References No definition available. + Details
Name: | anab_LiabilitiesRelatedToSaleOfFutureRoyaltiesLineItems
Namespace Prefix: | anab_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Noncash Advance Future Royalties And Amortization Of Advance Future Royalties, Interest Expense + References No definition available. + Details
Name: | anab_NoncashAdvanceFutureRoyaltiesAndAmortizationOfAdvanceFutureRoyaltiesInterestExpense
Namespace Prefix: | anab_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Noncash Advance Future Royalties, Interest Expense + References No definition available. + Details
Name: | anab_NoncashAdvanceFutureRoyaltiesInterestExpense
Namespace Prefix: | anab_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Proceeds From Advance Future Royalties + References No definition available. + Details
Name: | anab_ProceedsFromAdvanceFutureRoyalties
Namespace Prefix: | anab_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 220 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147476153/220-40-55-4 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 220 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 14 -Publisher FASB -URI https://asc.fasb.org/1943274/2147476153/220-40-55-14 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 41 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-41 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 42 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-42 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-7 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 270 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482964/270-10-50-1 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (ee) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-32 Reference 8: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-32 Reference 9: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-32 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 924 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479941/924-10-S99-1 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-5 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 30 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-30 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 22 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-22 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 40 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-40 Reference 15: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 22 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-22 Reference 16: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-4 + Details
Name: | us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

X
- Details
Name: | srt_CounterpartyNameAxis=anab_SagardHealthcareRoyaltyPartnersLPMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | anab_AdvanceFutureRoyaltiesPaymentAxis=anab_FirstInstallmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | anab_AdvanceFutureRoyaltiesPaymentAxis=anab_SecondInstallmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CounterpartyNameAxis=anab_GlaxoSmithKlineMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | srt_CounterpartyNameAxis=anab_DRIHealthcareTrustMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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