SEGMENT REPORTING - Segment Reporting Information, by Segment (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2025	Sep. 30, 2024
Segment Reporting Information [Line Items]
Revenue	$ 89,409			$ 140,163			$ 310,692	$ 483,460
Cost of sales	27,250			34,489			87,645	127,056
Equity compensation	910			606			5,467	5,231
Other loss (income)	(1,424)			528			(7,153)	(343)
Provision (benefit) for income taxes	(396)			449			1,296	1,222
Net income (loss)	(2,261)	$ 2,480	$ (772)	1,129	$ (8,154)	$ 8,316	(553)	1,290
Operating Segments | Optavia Segment
Segment Reporting Information [Line Items]
Revenue	89,409			140,163			310,692	483,460
Cost of sales	27,250			34,489			87,645	127,056
Selling, marketing, and after sales support	41,543			74,867			151,883	242,560
Distribution	3,815			6,138			13,646	32,196
Technology	11,123			12,481			32,731	38,651
Administrative and corporate support functions	8,849			9,476			25,730	35,597
Equity compensation	910			606			5,467	5,231
Other loss (income)	(1,424)			528			(7,153)	(343)
Provision (benefit) for income taxes	(396)			449			1,296	1,222
Net income (loss)	(2,261)			1,129			(553)	1,290
Adjustments and reconciling items | Optavia Segment
Segment Reporting Information [Line Items]
Net income (loss)	$ 0			$ 0			$ 0	$ 0