FEE AND COMMISSION INCOME - Narrative (Details) $ in Thousands	3 Months Ended
Jun. 30, 2025 USD ($)
Revenue from Contract with Customer [Abstract]
Customer loyalty program, cash back incentive	$ 24,000

Customer Loyalty Program, Cash Back Incentive, Amount Netted During Period

No definition available.

Name:	frhc_CustomerLoyaltyProgramCashBackIncentiveAmountNettedDuringPeriod
Namespace Prefix:	frhc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration