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Research Collaboration and License Agreements - Schedule of Contract Balances (Details) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2026 | Mar. 31, 2025
Accounts receivable related to collaborations |  |
Beginning balance | $ 1.0 | $ 5.7
Additions | 0.8 | 0.0
Payments received | 0.0 | (5.3)
Ending balance | 1.8 | 0.4
Accounts payable related to collaborations |  |
Beginning balance | 16.8 | 5.4
Additions | 9.1 | 19.4
Payments made | 0.0 | (5.4)
Ending balance | 25.9 | 19.4
Contract assets: Collaboration contract asset |  |
Beginning balance | 3.5 | 7.8
Amortization | (0.3) | (3.3)
Ending balance | 3.2 | 4.5
Contract liabilities: Deferred revenue |  |
Beginning balance | 205.6 | 448.2
Revenue recognized from balances held at the beginning of the period | (15.6) | (188.8)
Ending balance | $ 190.0 | $ 259.4

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