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

Royalty and Commercial Payment Purchase Agreements - Summary of Royalty Receivable Activities (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2024 USD ($)
Agreements
Short-term royalty receivable, Balance as of beginning of period	$ 14,215
Income from purchased receivables under effective interest rate method, Short-Term	4,562
Short-term royalty receivable, Balance as of end of period	14,257
Long-term royalty receivable, Balance as of beginning of period	57,952
Long-term royalty receivable, Balance as of end of period	69,731
Viracta
Agreements
Receipt of royalty and commercial payments, Long-Term	(8,500)
Affitech
Agreements
Receipt of royalty and commercial payments, Short-Term	(7,396)
Income from purchased receivables under effective interest rate method, Short-Term	4,562
Recognition of contingent consideration, Short-Term	3,000
Aptevo
Agreements
Receipt of royalty and commercial payments, Short-Term	(794)
Reclassification to short-term royalty and commercial payment receivables, Short-Term	670
Reclassification to short-term royalty and commercial payment receivables, Long-Term	(670)
Talphera
Agreements
Acquisition of royalty and commercial payment receivables, Long-Term	8,000
Receipt of royalty and commercial payments, Long-Term	(51)
Dare
Agreements
Acquisition of royalty and commercial payment receivables, Long-Term	22,000
Aronora
Agreements
Impairment of royalty and commercial payment receivables, Long-Term	$ (9,000)