DERIVATIVES - Net gain and losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Derivative [Line Items]
(Loss) gain in OCI on derivatives (effective portion), net of tax	$ (4,982)	$ 4,672
Designated as hedging instruments
Derivative [Line Items]
(Loss) gain in OCI on derivatives (effective portion), net of tax	(369)	(854)
Gain (loss) reclassified from OCI into interest income or interest expense (effective portion)	1,235	$ 1,018
Total	(9)
Designated as hedging instruments | Derivative loan commitments
Derivative [Line Items]
Total	$ (1,429)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Interest and Dividend Income, Operating	Interest and Dividend Income, Operating
Designated as hedging instruments | Interest rate swaps
Derivative [Line Items]
Total	$ 1,420
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Interest and Dividend Income, Operating	Interest and Dividend Income, Operating
Not designated as hedging instruments
Derivative [Line Items]
Total	$ 146	$ 81
Not designated as hedging instruments | Derivative loan commitments
Derivative [Line Items]
Total	$ 57	$ 558
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Mortgage Banking Noninterest Income	Mortgage Banking Noninterest Income
Not designated as hedging instruments | Forward loan sale commitments
Derivative [Line Items]
Total	$ 310	$ (477)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Mortgage Banking Noninterest Income	Mortgage Banking Noninterest Income
Not designated as hedging instruments | Interest rate futures
Derivative [Line Items]
Total	$ (221)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Mortgage Banking Noninterest Income	Mortgage Banking Noninterest Income
Not designated as hedging instruments | Interest rate swaps
Derivative [Line Items]
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Noninterest Income, Other Operating Income	Noninterest Income, Other Operating Income