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v3.25.3

INVESTMENTS (Tables) | 9 Months Ended
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Sep. 30, 2025
INVESTMENTS. |
Summary of investments in available-for-sale | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | ​ |  | ​ |  | ​ |  | Continuous |  | Continuous
​ | ​ | ​ | ​ | Gross | ​ | Gross | ​ | ​ | ​ | Unrealized | ​ | Unrealized
​ | ​ | ​ | ​ | Unrealized | ​ | Unrealized | ​ | ​ | ​ | Loss Position | ​ | Loss Position
​ | ​ | Amortized | ​ | Holding | ​ | Holding | ​ | Fair | ​ | less than | ​ | greater than
September 30, 2025 |  | Cost |  | Gains |  | Losses |  | Value |  | 12 Months |  | 12 Months
Available-for-sale | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Short-term: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Commercial paper | ​ | $ | 31,601 | ​ | $ | — | ​ | $ | — | ​ | $ | 31,601 | ​ | $ | — | ​ | $ | —
Certificates of deposit | ​ |  | 15,444 | ​ |  | — | ​ |  | — | ​ |  | 15,444 | ​ |  | — | ​ |  | —
U.S. treasuries | ​ |  | 209,387 | ​ |  | 140 | ​ |  | — | ​ |  | 209,527 | ​ |  | — | ​ |  | —
Corporate bonds | ​ |  | 29,754 | ​ |  | 65 | ​ |  | — | ​ |  | 29,819 | ​ |  | — | ​ |  | —
Long-term: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. treasuries | ​ |  | 214,843 | ​ |  | 59 | ​ |  | — | ​ |  | 214,902 | ​ |  | — | ​ |  | —
Corporate bonds | ​ |  | 144,104 | ​ |  | 168 | ​ |  | — | ​ |  | 144,272 | ​ |  | — | ​ | ​ | ​
Total | ​ | $ | 645,133 | ​ | $ | 432 | ​ | $ | — | ​ | $ | 645,565 | ​ | $ | — | ​ | $ | —
Summary of the underlying contractual maturities of investments | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | September 30, 2025
​ |  | Amortized Cost |  | Fair Value
Less than 1 year: | ​ | ​ |  |  | ​ |
Commercial paper | ​ | $ | 31,601 | ​ | $ | 31,601
Certificates of deposit | ​ |  | 15,444 | ​ |  | 15,444
U.S. treasuries | ​ |  | 209,387 | ​ |  | 209,527
Corporate bonds | ​ |  | 29,754 | ​ |  | 29,819
Due 1 - 10 years: | ​ |  | ​ | ​ |  | ​
U.S. treasuries | ​ |  | 214,843 | ​ |  | 214,902
Corporate bonds | ​ |  | 144,104 | ​ |  | 144,272
Total | ​ | $ | 645,133 | ​ | $ | 645,565
​

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- Definition Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments. + References No definition available. + Details
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