XML 54 R43.htm IDEA: XBRL DOCUMENT
v3.22.1

Licensing and Other Arrangements - Sale of Future Revenue Streams (Details) $ in Thousands |  | 3 Months Ended |
--- | --- | --- | ---
Dec. 21, 2016 USD ($) period agreement | Mar. 31, 2022 USD ($) | Mar. 31, 2021 USD ($) | Dec. 31, 2021 USD ($)
Licensing and other arrangements |  |  |  |
Unearned revenue recognized under units-of-revenue method |  | $ (357) | $ (356) |
Revenue recognized under units-of-revenue method |  | 357 | 356 |
Unearned revenue recognized under units-of-revenue method, current |  | 1,623 |  | $ 1,641
Unearned revenue recognized under units-of-revenue method, noncurrent |  | 11,346 |  | 11,685
HealthCare Royalty Partners II, L.P | Royalty Sale Agreements |  |  |  |
Licensing and other arrangements |  |  |  |
Number of agreements | agreement | 2 |  |  |
Unearned revenue recognized under units-of-revenue method | $ 18,000 |  |  |
Revenue recognized under units-of-revenue method |  | 400 | $ 400 |
Unearned revenue recognized under units-of-revenue method, current |  | 1,600 |  | 1,600
Unearned revenue recognized under units-of-revenue method, noncurrent |  | $ 11,300 |  | $ 11,700
HealthCare Royalty Partners II, L.P | First Royalty Sale Agreement |  |  |  |
Licensing and other arrangements |  |  |  |
Cash payment received | 6,500 |  |  |
Eligible potential additional payments receivable upon achievement of specified net sales milestones in future years | $ 4,000 |  |  |
Number of milestone periods | period | 3 |  |  |
HealthCare Royalty Partners II, L.P | Second Royalty Sale Agreement |  |  |  |
Licensing and other arrangements |  |  |  |
Cash payment received | $ 11,500 |  |  |

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 deferred income excluding obligation to transfer product and service to customer for which consideration has been received or is receivable, classified as current. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 25 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=28183603&loc=d3e692-112598 + Details
Name: | us-gaap_DeferredIncomeCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of deferred income excluding obligation to transfer product and service to customer for which consideration has been received or is receivable, classified as noncurrent. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 25 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=28183603&loc=d3e692-112598 + Details
Name: | us-gaap_DeferredIncomeNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of increase (decrease) in deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details
Name: | us-gaap_IncreaseDecreaseInDeferredRevenue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of revenue that is not accounted for under Topic 606. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(1)) -URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 + Details
Name: | us-gaap_RevenueNotFromContractWithCustomer
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Eligible potential additional payments receivable upon achievement of specified future net sales milestones. + References No definition available. + Details
Name: | xoma_EligiblePotentialAdditionalPaymentsReceivableUponAchievementOfSpecifiedFutureNetSalesMilestones
Namespace Prefix: | xoma_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Number of milestone periods for which entity is eligible to receive payments upon achievement of milestone. + References No definition available. + Details
Name: | xoma_MilestonePeriodsNumber
Namespace Prefix: | xoma_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of royalty interest acquisition agreements. + References No definition available. + Details
Name: | xoma_NumberOfRoyaltyInterestAcquisitionAgreements
Namespace Prefix: | xoma_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Cash proceeds received under agreement. May include, but is not limited to, upfront payments, one-time payments and cash-portion of payments received. + References No definition available. + Details
Name: | xoma_ProceedsFromUpfrontPayment
Namespace Prefix: | xoma_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

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

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

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