v3.26.1

Out-Licensing Agreements (Details) $ in Thousands	1 Months Ended	3 Months Ended			12 Months Ended
Out-Licensing Agreements (Details) $ in Thousands	Feb. 28, 2022 USD ($) item	Mar. 31, 2026 USD ($)	Mar. 31, 2025 USD ($)	Sep. 30, 2022 USD ($) item	Dec. 31, 2025 USD ($)
Collaborative agreements
Revenue		$ 214,266	$ 137,785
Territory License - ARCALYST
Collaborative agreements
Upfront payments received	$ 12,000
Addition to transaction price		20,000			$ 20,000
Number of performance obligations in an agreement \| item	1
Term of agreement for royalty payments	12 years
Territory License - ARCALYST \| Maximum
Collaborative agreements
Payments to be received by the company upon the achievement of specified development, regulatory and sales milestones		50,000
Territory License - ARCALYST \| Non-current deferred revenue
Collaborative agreements
Transaction price		31,811
Territory License - ARCALYST \| License and collaboration revenue
Collaborative agreements
Revenue		0	0
Worldwide License - Vixarelimab
Collaborative agreements
Number of performance obligations in an agreement \| item				4
Payments to be received by the company upon the achievement of specified development, regulatory and sales milestones		570,000		$ 600,000
Worldwide License - Vixarelimab \| License and collaboration revenue
Collaborative agreements
Revenue		$ 0	$ 0

The additional amount of initial consideration to which an entity expects to be entitled in exchange for transferring promised goods or services to a customer, excluding amounts collected on behalf of third parties.

+ References

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+ References

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The number of performance obligations in an agreement.

+ References

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The amount of payments to be received by the company upon the achievement of specified development, regulatory and sales milestones.

+ References

No definition available.

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The amount of upfront payments received.

+ References

No definition available.

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- 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.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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Kiniksa Pharmaceuticals International, plc 10-Q