Legal Matters (Details) $ in Millions |
Jun. 05, 2025
complaint
|
Jun. 03, 2025
complaint
|
May 15, 2025
USD ($)
count
|
Jan. 22, 2025
complaint
|
|---|---|---|---|---|
| Gain Contingencies [Line Items] | ||||
| Number of shareholder derivative complaints filed | complaint | 2 | 2 | ||
| Number of consolidated shareholder derivative complaints | complaint | 2 | |||
| Regeneron vs. Amgen | ||||
| Gain Contingencies [Line Items] | ||||
| Number of counts submitted | count | 10 | |||
| Number of counts ruled in favor of plaintiff | count | 9 | |||
| Compensatory Damages | Regeneron vs. Amgen | ||||
| Gain Contingencies [Line Items] | ||||
| Damages awarded | $ | $ 135.6 | |||
| Punitive Damages | Regeneron vs. Amgen | ||||
| Gain Contingencies [Line Items] | ||||
| Damages awarded | $ | $ 271.2 |