SHAREHOLDERS’ EQUITY - Changes in Accumulated Other Comprehensive Income After-tax By Component (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 1,522,263	$ 1,529,116
Transfer from available-for-sale to held-to-maturity		0
Ending balance	1,592,820	1,473,177
Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(130,332)	18,777
Net change	24,357	(78,037)
Ending balance	(105,975)	(59,260)
Net Unrealized Gain (Loss) on Available-for-Sale Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(144,549)	5,271
Net change	23,693	(79,353)
Transfer from available-for-sale to held-to-maturity		(197)
Ending balance	(120,856)	(74,279)
Unamortized Gain (Loss) on Held-to-Maturity Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	13,185	15,684
Net change	(638)	(704)
Transfer from available-for-sale to held-to-maturity		197
Ending balance	12,547	15,177
Net Unrealized Gain (Loss) on Cash Flow Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	1,032	(2,178)
Net change	1,302	2,020
Transfer from available-for-sale to held-to-maturity		0
Ending balance	$ 2,334	$ (158)