COST OF REVENUE - Schedule of Components of Cost of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Cost of Revenue [Abstract]
Outside fees and services	$ 25,333	$ 17,261	$ 70,769	$ 51,757
Compensation and benefits	8,843	8,112	25,027	22,971
Technology and telecommunications	3,497	2,945	9,821	8,830
Reimbursable expenses	2,073	2,171	6,350	7,067
Depreciation and amortization	50	72	145	311
Total	$ 39,796	$ 30,561	$ 112,112	$ 90,936

The aggregate cost of goods produced and sold and services rendered during the reporting period.

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+ Details