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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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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Discount rate used by lessee to determine present value of operating lease payments.

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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
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Present value of lessee's discounted obligation for lease payments from operating lease.

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Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.

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Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.

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Amount of lessee's right to use underlying asset under operating lease.

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