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LEASES - Supplemental balance sheet information related to leases (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
LEASES |  |
Operating lease right-of-use asset | $ 11,406 | $ 5,437
Non-current operating lease liability | 9,301 | $ 3,416
Stamford office space lease |  |
LEASES |  |
Operating lease right-of-use asset | 6,975 |
Current operating lease liability | 354 |
Non-current operating lease liability | 6,547 |
Total operating lease liability | $ 6,901 |
Remaining lease term (in years) - Operating lease | 11 years 2 months 12 days |
Discount rate (as a percentage) - Operating lease | 6.70% |

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- Definition Remaining lease term of operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 7A -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-7A Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-3 + Details
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