XML 49 R32.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Investments (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2024
Investments |
Schedule of amortized cost and fair value of available-for-sale securities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  | Gross |  | Gross |  | ​
​ | ​ | Amortized | ​ | Unrealized | ​ | Unrealized | ​ | Estimated
​ | ​ | Cost | ​ | Gains | ​ | Losses | ​ | Fair Value
​ | ​ | (in thousands)
December 31, 2024 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. treasuries | ​ | $ | 84,008 | ​ | $ | 45 | ​ | $ | (21) | ​ | $ | 84,032
Government agency securities | ​ | ​ | 30,244 | ​ | ​ | 13 | ​ | ​ | (90) | ​ | ​ | 30,167
Corporate debt | ​ | ​ | 83,209 | ​ | ​ | 17 | ​ | ​ | (175) | ​ | ​ | 83,051
Commercial paper | ​ | ​ | 1,469 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 1,469
Total | ​ | $ | 198,930 | ​ | $ | 75 | ​ | $ | (286) | ​ | $ | 198,719
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
December 31, 2023 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. treasuries | ​ | $ | 59,541 | ​ | $ | 3 | ​ | $ | (51) | ​ | $ | 59,493
Government agency securities | ​ | ​ | 41,843 | ​ | ​ | 6 | ​ | ​ | (31) | ​ | ​ | 41,818
Corporate debt | ​ |  | 35,447 | ​ | ​ | 9 | ​ | ​ | (47) | ​ |  | 35,409
Commercial paper | ​ | ​ | 9,944 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 9,944
Total | ​ | $ | 146,775 | ​ | $ | 18 | ​ | $ | (129) | ​ | $ | 146,664
Schedule of fair value and unrealized losses of available-for-sale securities in a loss position | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Continuous Loss Position | ​ | Continuous Loss Position
​ | ​ | for Less than 12 Months | ​ | for 12 Months or More
​ |  | ​ | ​ |  | Gross |  | ​ | ​ |  | Gross
​ | ​ | Estimated | ​ | Unrealized | ​ | Estimated | ​ | Unrealized
​ | ​ | Fair Value | ​ | Losses | ​ | Fair Value | ​ | Losses
​ | ​ | ​ | (in thousands)
December 31, 2024 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. treasuries | ​ | $ | 26,756 | ​ | $ | (21) | ​ | $ | — | ​ | $ | —
Government agency securities | ​ | ​ | 20,062 | ​ | ​ | (90) | ​ | ​ | — | ​ | ​ | —
Corporate debt | ​ |  | 58,967 | ​ |  | (175) | ​ |  | — | ​ |  | —
Total | ​ | $ | 105,785 | ​ | $ | (286) | ​ | $ | — | ​ | $ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
December 31, 2023 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. treasuries | ​ | $ | 43,118 | ​ | $ | (50) | ​ | $ | — | ​ | $ | —
Government agency securities | ​ | ​ | 34,885 | ​ | ​ | (31) | ​ | ​ | — | ​ | ​ | —
Corporate debt | ​ |  | 23,262 | ​ |  | (33) | ​ |  | 2,618 | ​ |  | (15)
Total | ​ | $ | 101,265 | ​ | $ | (114) | ​ | $ | 2,618 | ​ | $ | (15)
Schedule of contractual maturities of securities classified as available-for-sale | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2024
​ | ​ | Amortized | ​ | Estimated
​ | ​ | Cost | ​ | Fair Value
​ | ​ | ​ | (in thousands)
Due in one year or less | ​ | $ | 143,688 | ​ | $ | 143,696
Due after one year through two years | ​ | ​ | 55,242 | ​ |  | 55,023
Total | ​ | $ | 198,930 | ​ | $ | 198,719

X
- Definition Tabular disclosure of fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479081/326-30-55-8 Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-6 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479106/326-30-50-4 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionFairValueTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value. + References No definition available. + Details
Name: | us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration