SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Reclassification out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Other comprehensive income/(loss):
Other comprehensive income before tax	$ 32,316	$ 35,440	$ 13,542
Provision (Benefit)
Other comprehensive income/(loss), provision (benefit)	6,787	7,442	2,844
After Tax
Other comprehensive income/(loss) before reclassifications	36,600	45,662	26,888
Less reclassification adjustments, provision (benefit)	(11,071)	(17,664)	(16,190)
Other comprehensive income net of tax	25,529	27,998	10,698
Available-for-Sale Securities
Other comprehensive income/(loss):
Unrealized gains /(losses) , before tax	50,971	40,145	59,640
Other comprehensive income before tax	51,123	39,078	59,640
Provision (Benefit)
Unrealized gains/ (losses), provision (benefit)	10,705	8,430	12,526
Other comprehensive income/(loss), provision (benefit)	10,737	8,206	12,526
After Tax
Other comprehensive income/(loss) before reclassifications	40,266	31,715	47,114
Less reclassification adjustments, provision (benefit)	120	(843)	0
Other comprehensive income net of tax	40,386	30,872	47,114
Available-for-Sale Securities | Gain on sale of available-for sale investment securities
Other comprehensive income/(loss):
Less reclassification adjustments, before tax	163	(1,052)	0
Provision (Benefit)
Less reclassification adjustments, provision (benefit)	34	(221)	0
After Tax
Less reclassification adjustments, provision (benefit)	129	(831)	0
Available-for-Sale Securities | Other income
Other comprehensive income/(loss):
Less reclassification adjustments, before tax	(11)	(15)	0
Provision (Benefit)
Less reclassification adjustments, provision (benefit)	(2)	(3)	0
After Tax
Less reclassification adjustments, provision (benefit)	(9)	(12)	0
Held-to-Maturity Securities
Other comprehensive income/(loss):
Unrealized gains /(losses) , before tax	0	0	(31,898)
Less reclassification adjustments, before tax	(26)	(636)	148
Other comprehensive income before tax	(26)	(636)	(31,750)
Provision (Benefit)
Unrealized gains/ (losses), provision (benefit)	0	0	(6,699)
Less reclassification adjustments, provision (benefit)	(6)	(134)	30
Other comprehensive income/(loss), provision (benefit)	(6)	(134)	(6,669)
After Tax
Other comprehensive income/(loss) before reclassifications	0	0	(25,199)
Less reclassification adjustments, provision (benefit)	(20)	(502)	118
Other comprehensive income net of tax	(20)	(502)	(25,081)
Cash Flow Hedges
Other comprehensive income/(loss):
Unrealized gains /(losses) , before tax	(4,641)	17,655	6,295
Less reclassification adjustments, before tax	(14,140)	(20,657)	(20,643)
Other comprehensive income before tax	(18,781)	(3,002)	(14,348)
Provision (Benefit)
Unrealized gains/ (losses), provision (benefit)	(975)	3,708	1,322
Less reclassification adjustments, provision (benefit)	(2,969)	(4,338)	(4,335)
Other comprehensive income/(loss), provision (benefit)	(3,944)	(630)	(3,013)
After Tax
Other comprehensive income/(loss) before reclassifications	(3,666)	13,947	4,973
Less reclassification adjustments, provision (benefit)	(11,171)	(16,319)	(16,308)
Other comprehensive income net of tax	$ (14,837)	$ (2,372)	$ (11,335)