SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Accumulated Other Comprehensive Income, Net of Tax (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 1,489,026	$ 1,411,863	$ 1,271,958
Other comprehensive income/(loss) before reclassifications	36,600	45,662	26,888
Amounts reclassified from AOCI	(11,071)	(17,664)	(16,190)
Other comprehensive income net of tax	25,529	27,998	10,698
Ending balance	1,718,949	1,489,026	1,411,863
Accumulated Other Comprehensive Loss
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(12,147)	(40,145)	(50,843)
Other comprehensive income net of tax	25,529	27,998	10,698
Ending balance	13,382	(12,147)	(40,145)
Available-for-Sale Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(37,575)	(68,447)	(115,561)
Other comprehensive income/(loss) before reclassifications	40,266	31,715	47,114
Amounts reclassified from AOCI	120	(843)	0
Other comprehensive income net of tax	40,386	30,872	47,114
Ending balance	2,811	(37,575)	(68,447)
Held-to-Maturity Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(9,226)	(8,724)	16,357
Other comprehensive income/(loss) before reclassifications	0	0	(25,199)
Amounts reclassified from AOCI	(20)	(502)	118
Other comprehensive income net of tax	(20)	(502)	(25,081)
Ending balance	(9,246)	(9,226)	(8,724)
Cash Flow Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	34,654	37,026	48,361
Other comprehensive income/(loss) before reclassifications	(3,666)	13,947	4,973
Amounts reclassified from AOCI	(11,171)	(16,319)	(16,308)
Other comprehensive income net of tax	(14,837)	(2,372)	(11,335)
Ending balance	$ 19,817	$ 34,654	$ 37,026