XOMA Corporation Quarterly report pursuant to Section 13 or 15(d)

Royalty and Commercial Payment Purchase Agreements - Summary of Royalty Receivable Activities (Details)

Royalty and Commercial Payment Purchase Agreements - Summary of Royalty Receivable Activities (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2024 USD ($)
Agreements
Balance at Beginning of Period, Royalty and Commercial Payment Receivables, Cost Recovery Method	$ 72,167
Acquisition of Royalty and Commercial Payment Receivables, Cost Recovery Method	30,000
Receipt of Royalty and Commercial Payments, Cost Recovery Method	(16,770)
Recognition of Contingent Consideration, Cost Recovery Method	4,000
Impairment of Royalty and Commercial Payment Receivables, Recovery Method	(23,000)
Reclassification of Royalty and Commercial Payment Receivables from Cost Recovery to EIR Method, Cost Recovery Method	(7,795)
Balance at End of Period, Royalty and Commercial Payment Receivables, Cost Recovery Method	58,602
Reclassification of Royalty and Commercial Payment Receivables from Cost Recovery to EIR Method, EIR Method	7,795
Income from Purchased Receivables Under EIR Method	9,985
Receipt of Royalty and Commercial Payments, EIR Method	(9,493)
Balance at End of Period, Royalty and Commercial Payment Receivables, EIR Method	8,287
Dare
Agreements
Acquisition of Royalty and Commercial Payment Receivables, Cost Recovery Method	22,000
Balance at End of Period, Royalty and Commercial Payment Receivables, Cost Recovery Method	22,000
Talphera
Agreements
Acquisition of Royalty and Commercial Payment Receivables, Cost Recovery Method	8,000
Receipt of Royalty and Commercial Payments, Cost Recovery Method	(80)
Balance at End of Period, Royalty and Commercial Payment Receivables, Cost Recovery Method	7,920
LadRx
Agreements
Balance at Beginning of Period, Royalty and Commercial Payment Receivables, Cost Recovery Method	6,000
Recognition of Contingent Consideration, Cost Recovery Method	1,000
Balance at End of Period, Royalty and Commercial Payment Receivables, Cost Recovery Method	7,000
Aptevo
Agreements
Balance at Beginning of Period, Royalty and Commercial Payment Receivables, Cost Recovery Method	7,976
Receipt of Royalty and Commercial Payments, Cost Recovery Method	(794)
Balance at End of Period, Royalty and Commercial Payment Receivables, Cost Recovery Method	7,182
Agenus
Agreements
Balance at Beginning of Period, Royalty and Commercial Payment Receivables, Cost Recovery Method	14,000
Impairment of Royalty and Commercial Payment Receivables, Recovery Method	(14,000)
Aronora
Agreements
Balance at Beginning of Period, Royalty and Commercial Payment Receivables, Cost Recovery Method	9,000
Impairment of Royalty and Commercial Payment Receivables, Recovery Method	(9,000)
Palobiofarma
Agreements
Balance at Beginning of Period, Royalty and Commercial Payment Receivables, Cost Recovery Method	10,000
Balance at End of Period, Royalty and Commercial Payment Receivables, Cost Recovery Method	10,000
Viracta
Agreements
Balance at Beginning of Period, Royalty and Commercial Payment Receivables, Cost Recovery Method	8,500
Receipt of Royalty and Commercial Payments, Cost Recovery Method	(8,500)
Kuros
Agreements
Balance at Beginning of Period, Royalty and Commercial Payment Receivables, Cost Recovery Method	4,500
Balance at End of Period, Royalty and Commercial Payment Receivables, Cost Recovery Method	4,500
Affitech
Agreements
Balance at Beginning of Period, Royalty and Commercial Payment Receivables, Cost Recovery Method	12,191
Receipt of Royalty and Commercial Payments, Cost Recovery Method	(7,396)
Recognition of Contingent Consideration, Cost Recovery Method	3,000
Reclassification of Royalty and Commercial Payment Receivables from Cost Recovery to EIR Method, Cost Recovery Method	(7,795)
Reclassification of Royalty and Commercial Payment Receivables from Cost Recovery to EIR Method, EIR Method	7,795
Income from Purchased Receivables Under EIR Method	9,985
Receipt of Royalty and Commercial Payments, EIR Method	(9,493)
Balance at End of Period, Royalty and Commercial Payment Receivables, EIR Method	$ 8,287