DERIVATIVE INSTRUMENTS - Schedule of Notional and Fair Value Amounts of Derivative Instruments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Derivatives, Fair Value [Line Items]
Amount of Gain (Loss) Recognized in Other Comprehensive Income (Loss)	$ (44,184)	$ (834)	$ (1,960)
Fair Value Hedging
Derivatives, Fair Value [Line Items]
Derivative assets, weighted average pay rate	1.21%	1.21%
Derivative assets, notional amount	$ 1,001,715	$ 1,001,715
Derivative assets, fair value	59,829	103,366
Derivative liability, notional amount	325,000	0
Derivative liabilities, fair value	(3,337)	0
Carrying amount of hedged assets	970,976	934,132
Cumulative amount of fair value hedging adjustment included in the carrying amount of hedged assets	$ 60,013	$ 103,595
Hedged Asset, Statement of Financial Position [Extensible Enumeration]	Estimated Fair Value	Estimated Fair Value
Carrying amount of hedged liabilities	$ 317,714	$ 0
Cumulative amount of fair value hedging adjustment included in the carrying amount of hedged liabilities	$ (3,455)	$ 0
Hedged Liability, Statement of Financial Position [Extensible Enumeration]	Subordinated notes and debentures	Subordinated notes and debentures
Fair Value Hedging | Minimum
Derivatives, Fair Value [Line Items]
Derivative liabilities, receive rate	3.07%
Fair Value Hedging | Maximum
Derivatives, Fair Value [Line Items]
Derivative liabilities, receive rate	3.56%
Cash Flow Hedging | Variable rate loans
Derivatives, Fair Value [Line Items]
Derivative assets, notional amount	$ 1,000,000	$ 0
Derivative assets, fair value	(919)	0
Amount of Gain (Loss) Recognized in Other Comprehensive Income (Loss)	$ (919)	0
Cash Flow Hedging | Variable rate loans | Minimum
Derivatives, Fair Value [Line Items]
Derivative liabilities, receive rate	3.18%
Cash Flow Hedging | Variable rate loans | Maximum
Derivatives, Fair Value [Line Items]
Derivative liabilities, receive rate	4.05%
Cash Flow Hedging | Variable rate commercial MBS
Derivatives, Fair Value [Line Items]
Derivative assets, notional amount	$ 300,000	0
Derivative assets, fair value	317	0
Amount of Gain (Loss) Recognized in Other Comprehensive Income (Loss)	$ 317	0
Cash Flow Hedging | Variable rate commercial MBS | Minimum
Derivatives, Fair Value [Line Items]
Derivative liabilities, receive rate	3.07%
Cash Flow Hedging | Variable rate commercial MBS | Maximum
Derivatives, Fair Value [Line Items]
Derivative liabilities, receive rate	3.82%
Interest Rate Swap
Derivatives, Fair Value [Line Items]
Derivative assets, notional amount	$ 1,190,958	748,752
Derivative assets, fair value	26,734	24,108
Derivative liability, notional amount	1,191,858	749,683
Derivative liabilities, fair value	$ (26,682)	$ (24,032)