GOODWILL, INTANGIBLE ASSETS, DERIVATIVES, AND DIGITAL ASSETS - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2026	Dec. 31, 2025
Intangible Asset, Finite-Lived, after Accumulated Amortization [Abstract]
Accumulated Amortization	$ (3,766)	$ (3,130)
Net Book Value	16,412
Intangible Asset, Including Goodwill, after Accumulated Amortization [Abstract]
Gross Carrying Amount	174,450	174,450
Accumulated Amortization	(3,766)	(3,130)
Foreign Currency Translation	(1,665)	(546)
Net Book Value	169,019	170,774
Exchange licenses
Intangible Asset, Indefinite-Lived [Line Items]
Gross Carrying Amount	148,000	148,000
Foreign Currency Translation	(1,393)	(452)
Net Book Value	146,607	147,548
FCM license
Intangible Asset, Indefinite-Lived [Line Items]
Gross Carrying Amount	6,000	6,000
Foreign Currency Translation	0	0
Net Book Value	$ 6,000	$ 6,000
Customer relationships
Intangible Asset, Finite-Lived [Line Items]
Intangible Asset, Finite-Lived, Useful Life	13 years 1 month 6 days	13 years 7 months 6 days
Intangible Asset, Finite-Lived, after Accumulated Amortization [Abstract]
Gross Carrying Amount	$ 20,250	$ 20,250
Accumulated Amortization	(3,566)	(2,930)
Foreign Currency Translation	(272)	(94)
Net Book Value	16,412	17,226
Intangible Asset, Including Goodwill, after Accumulated Amortization [Abstract]
Accumulated Amortization	(3,566)	(2,930)
Other
Intangible Asset, Finite-Lived, after Accumulated Amortization [Abstract]
Gross Carrying Amount	200	200
Accumulated Amortization	(200)	(200)
Foreign Currency Translation	0	0
Net Book Value	0	0
Intangible Asset, Including Goodwill, after Accumulated Amortization [Abstract]
Accumulated Amortization	$ (200)	$ (200)