Royalty Obligation (Details) - Royalty obligation - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
Sep. 30, 2025	Mar. 31, 2026
Royalty Obligation
Proceeds from royalty obligation	$ 75,000	$ 75,000
Percentage of royalty on net sales	5.50%
Percentage of royalty on net sales by licensees	5.50%
Percentage of royalty on income earned from licensees	25.00%
Percentage of royalty on non-royalty income earned from licensees	25.00%
Additional payment	$ 225,000
Issuance costs	3,700	$ 3,691
Zenas' INDIGO Phase 3 Trial
Royalty Obligation
Additional payment	75,000
FDA approval for IgG4-Related Disease
Royalty Obligation
Additional payment	75,000
FDA for the treatment of systemic lupus erythematosus
Royalty Obligation
Additional payment	$ 75,000

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.

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