XML 57 R47.htm IDEA: XBRL DOCUMENT
v3.20.2

Royalty Purchase Agreements - Agenus (Details) $ in Thousands |  | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 20, 2018 USD ($) product | Jun. 30, 2020 USD ($) | Jun. 30, 2019 USD ($) | Dec. 31, 2019 USD ($)
Agreements |  |  |  |  |
Payments to acquire milestones and royalties |  |  | $ 6,300 |  |
Proceeds from issuance of long-term debt |  |  | $ 3,000 |  |
Changes in estimated fair value of contingent consideration |  | $ 0 |  |  |
Long-term royalty receivables |  | 34,375 |  | $ 34,375 | [1]
Impairment of long-term royalty receivable |  | 0 |  | $ 0 |
Royalty Purchase Agreement | Agenus |  |  |  |  |
Agreements |  |  |  |  |
Payments to acquire milestones and royalties | $ 15,000 |  |  |  |
Long-term royalty receivables | 15,000 |  |  |  |
Impairment of long-term royalty receivable |  | $ 0 |  |  |
Royalty Purchase Agreement | Agenus | Silicon Valley Bank Loans |  |  |  |  |
Agreements |  |  |  |  |
Proceeds from issuance of long-term debt | $ 7,500 |  |  |  |
Royalty Purchase Agreement | Agenus | Incyte Immuno-Oncology Assets |  |  |  |  |
Agreements |  |  |  |  |
Royalties on net sales of products (as a percent) | 33.00% |  |  |  |
Number of licensed products related to milestone and royalties | product | 6 |  |  |  |
Purchased percentage of milestones | 10.00% |  |  |  |
Royalty Purchase Agreement | Agenus | Merck Immuno-Oncology Product |  |  |  |  |
Agreements |  |  |  |  |
Royalties on net sales of products (as a percent) | 33.00% |  |  |  |
Purchased percentage of milestones | 10.00% |  |  |  |
Purchased eligible milestone payments receivable upon achievement of potential development, regulatory and commercial milestones | $ 59,500 |  |  |  |
[1] | The consolidated balance sheet as of December 31, 2019 has been derived from the audited consolidated financial statements as of that date included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2019.

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 The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 + Details
Name: | us-gaap_ProceedsFromIssuanceOfLongTermDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Changes in estimated fair value of contingent consideration. + References No definition available. + Details
Name: | xoma_ChangesInEstimatedFairValueOfContingentConsideration
Namespace Prefix: | xoma_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The aggregate amount of write-downs for impairments recognized during the period for long term royalty receivable assets. + References No definition available. + Details
Name: | xoma_ImpairmentOfLongTermRoyaltyReceivable
Namespace Prefix: | xoma_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Long-term royalty receivable non current. + References No definition available. + Details
Name: | xoma_LongTermRoyaltyReceivableNonCurrent
Namespace Prefix: | xoma_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Number of licensed products related to milestones and royalties purchased. + References No definition available. + Details
Name: | xoma_NumberOfLicensedProductsRelatedToMilestonesAndRoyaltiesPurchased
Namespace Prefix: | xoma_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Payments related to purchase of royalty rights. + References No definition available. + Details
Name: | xoma_PaymentsRelatedToPurchaseOfRoyaltyRights
Namespace Prefix: | xoma_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Purchased eligible milestone payments receivable upon achievement of potential development, regulatory and commercial milestones. May also include clinical milestones. + References No definition available. + Details
Name: | xoma_PurchasedEligibleMilestonePaymentsReceivableUponAchievementOfPotentialDevelopmentRegulatoryAndCommercialMilestones
Namespace Prefix: | xoma_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Purchased percentage of milestones. + References No definition available. + Details
Name: | xoma_PurchasedPercentageOfMilestones
Namespace Prefix: | xoma_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Purchased percentage of royalties on net sales of products. + References No definition available. + Details
Name: | xoma_PurchasedPercentageOfRoyaltiesOnNetSalesOfProducts
Namespace Prefix: | xoma_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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

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

X
- Details
Name: | us-gaap_DebtInstrumentAxis=xoma_SiliconValleyBankMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=xoma_IncyteImmunoOncologyAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=xoma_MerckImmunoOncologyProductMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |