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v3.25.1

Subsequent Events (Details) $ / shares in Units, $ in Millions | Feb. 06, 2025 USD ($) $ / shares | Mar. 25, 2025 USD ($) | Dec. 31, 2024 $ / shares | Jun. 30, 2024 $ / shares | Dec. 31, 2023 $ / shares
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Voting common stock |  |  |  |  |
Subsequent Events |  |  |  |  |
Common stock, par or stated value per share | $ / shares |  |  | $ 0.0001 | $ 0.0001 | $ 0.0001
Subsequent Event |  |  |  |  |
Subsequent Events |  |  |  |  |
Termination fee | $ 10.0 |  |  |  |
Subsequent Event | Kaken |  |  |  |  |
Subsequent Events |  |  |  |  |
Upfront, non-refundable payment |  | $ 20.0 |  |  |
Payment to global development cost |  | 20.0 |  |  |
Aggregate payment of regulatory and commercial milestones |  | $ 140.0 |  |  |
Subsequent Event | The Combined Company |  |  |  |  |
Subsequent Events |  |  |  |  |
Ownership percentage | 55.00% |  |  |  |
Subsequent Event | ACELYRIN |  |  |  |  |
Subsequent Events |  |  |  |  |
Common stock, par or stated value per share | $ / shares | $ 0.00001 |  |  |  |
Termination fee | $ 10.0 |  |  |  |
Subsequent Event | ACELYRIN | The Combined Company |  |  |  |  |
Subsequent Events |  |  |  |  |
Ownership percentage | 45.00% |  |  |  |
Subsequent Event | ACELYRIN | Voting common stock |  |  |  |  |
Subsequent Events |  |  |  |  |
Cancelled and converted Ratio | 0.4274 |  |  |  |

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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 830 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481674/830-30-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 855 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483399/855-10-50-2 + Details
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