DERIVATIVE INSTRUMENTS - Schedule of Derivative Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Derivative Fair Values on Consolidated Balance Sheet [Line Items]
Derivative asset fair value	$ 9,439	$ 4,424
Derivative liability fair value	$ 3,100	$ 10,165
Derivative asset, statement of financial position [Extensible Enumeration]	Other assets	Other assets
Derivative liability, statement of financial position [Extensible Enumeration]	Other liabilities	Other liabilities
Not Designated as Hedging Instruments
Derivative Fair Values on Consolidated Balance Sheet [Line Items]
Derivative asset fair value	$ 9,439	$ 4,424
Derivative liability fair value	3,100	10,165
Not Designated as Hedging Instruments | Investment Portfolio | Foreign exchange forward contracts
Derivative Fair Values on Consolidated Balance Sheet [Line Items]
Derivative notional amount	17,655	49,307
Derivative asset fair value	323	66
Derivative liability fair value	0	274
Not Designated as Hedging Instruments | Underwriting Portfolio | Foreign exchange forward contracts
Derivative Fair Values on Consolidated Balance Sheet [Line Items]
Derivative notional amount	1,323,714	1,347,559
Derivative asset fair value	9,116	4,358
Derivative liability fair value	$ 3,100	$ 9,891