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SHAREHOLDERS’ EQUITY - Pre-tax and After-tax Changes in the Components of Other Comprehensive Income (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, before Reclassification Adjustments, after Tax [Abstract] |  |  |  |
Change in unrealized gain (loss) on available-for-sale debt securities, before tax | $ (60,539) | $ (10,479) | $ (232,457) | $ (21,226)
Change in unrealized gain (loss) on available-for-sale debt securities, tax | (15,256) | (2,609) | (58,579) | (5,285)
Change in unrealized gain (loss) on available-for-sale debt securities, after tax | (45,283) | (7,870) | (173,878) | (15,941)
Other Comprehensive Loss, Held-to-maturity Security, OTTI, after Tax and Adjustments [Abstract] |  |  |  |
Reclassification of gain on held-to-maturity securities, before tax | (865) | (1,072) | (2,743) | (3,716)
Reclassification of gain on held-to-maturity securities, tax | (218) | (267) | (691) | (925)
Reclassification of gain on held-to-maturity securities, after tax | (647) | (805) | (2,052) | (2,791)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax, Parent [Abstract] |  |  |  |
Change in unrealized gain (loss) on cash flow hedges arising during the period, before tax | 1,557 | 12 | 4,615 | 867
Change in unrealized gain (loss) on cash flow hedges arising during the period, tax | 392 | 3 | 1,164 | 216
Change in unrealized gain (loss) on cash flow hedges arising during the period, after tax | 1,165 | 9 | 3,451 | 651
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax [Abstract] |  |  |  |
Reclassification of loss on cash flow hedges, before tax | 73 | 395 | 682 | 1,149
Reclassification of loss on cash flow hedges, tax | 18 | 99 | 171 | 286
Reclassification of loss on cash flow hedges, after tax | (55) | (296) | (511) | (863)
OCI, Net of Tax [Abstract] |  |  |  |
Total other comprehensive income (loss), before tax | (59,774) | (11,144) | (229,903) | (22,926)
Total other comprehensive income (loss), tax | (15,064) | (2,774) | (57,935) | (5,708)
Total other comprehensive loss, after-tax | $ (44,710) | $ (8,370) | $ (171,968) | $ (17,218)

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