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Commitments and Contingencies - Narrative (Details) $ in Millions | 1 Months Ended |  |
--- | --- | --- | ---
Apr. 30, 2026 USD ($) | Jun. 30, 2025 USD ($) part tranche | Mar. 31, 2026 USD ($) | Dec. 31, 2025 USD ($)
Long-term Purchase Commitment [Line Items] |  |  |  |
Lease extension term |  |  | 5 years |
RP Manager |  |  |  |
Long-term Purchase Commitment [Line Items] |  |  |  |
Right of use assets |  |  | $ 18.3 | $ 19.1
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] |  |  | Other assets |
Present value of lease liabilities |  |  | $ 15.3 | 16.1
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration] |  |  | Other liabilities |
Cytokinetics Funding Commitments |  |  |  |
Long-term Purchase Commitment [Line Items] |  |  |  |
Long term funding partnership, remaining availability |  |  | $ 175.0 |
Revolution Medicines Funding Commitments |  |  |  |
Long-term Purchase Commitment [Line Items] |  |  |  |
Number of parts to funding arrangement | part |  | 2 |  |
Revolution Medicines Funding Commitments | Revolution Medicines, Inc |  |  |  |
Long-term Purchase Commitment [Line Items] |  |  |  |
Credit loss allowance |  |  | 85.3 | $ 89.0
Revolution Medicines Funding Commitments | Revolution Medicines, Inc | Senior Secured Term Loan |  |  |  |
Long-term Purchase Commitment [Line Items] |  |  |  |
Long term funding partnership, number of tranches | tranche |  | 3 |  |
Long term funding partnership, amount |  | $ 250.0 |  |
Revolution Medicines Funding Commitments | Revolution Medicines, Inc | Royalty Purchase |  |  |  |
Long-term Purchase Commitment [Line Items] |  |  |  |
Long term funding partnership, number of tranches | tranche |  | 5 |  |
Long term funding partnership, amount |  | $ 250.0 |  |
Funding commitment remained unfunded |  |  | 1,000.0 |
Revolution Medicines Funding Commitments | Revolution Medicines, Inc | Maximum |  |  |  |
Long-term Purchase Commitment [Line Items] |  |  |  |
Other commitment |  | 2,000.0 |  |
Revolution Medicines Funding Commitments | Revolution Medicines, Inc | Maximum | Senior Secured Term Loan |  |  |  |
Long-term Purchase Commitment [Line Items] |  |  |  |
Other commitment |  |  | $ 750.0 |
Revolution Medicines Funding Commitments | Revolution Medicines, Inc | Maximum | Royalty Purchase |  |  |  |
Long-term Purchase Commitment [Line Items] |  |  |  |
Other commitment |  | $ 1,250.0 |  |
Revolution Medicines Funding Commitments | RASolute 302 | Royalty Purchase | Subsequent Event |  |  |  |
Long-term Purchase Commitment [Line Items] |  |  |  |
Long term funding partnership, amount | $ 250.0 |  |  |

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