v3.26.1
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning balance $ 2,413,022 $ 2,179,606 $ 2,468,982 $ 1,383,269
Ending balance 2,383,170 2,412,546 2,383,170 2,412,546
Total        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning balance (135,553) (172,810) (124,473) (207,039)
Ending balance (141,080) (155,311) (141,080) (155,311)
Unrealized Gains (Losses) on Debt Securities Available For Sale and Unrealized Gains (Losses) on Cash Flow Hedges        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Unrealized holding gains (losses), net (7,240) 14,586 (20,091) 35,808
Amounts reclassified from AOCI, net and amortization of unrecognized losses on securities transferred to held to maturity 1,039 1,685 2,073 14,564
Unrealized Gains (Losses) on Debt Securities Available For Sale        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning balance (108,779) (137,725) (98,693) (165,680)
Unrealized holding gains (losses), net (1,576) 11,988 (11,644) 28,569
Amounts reclassified from AOCI, net and amortization of unrecognized losses on securities transferred to held to maturity   (8) (18) 11,366
Ending balance (110,355) (125,745) (110,355) (125,745)
Unrealized Gains (Losses) on Cash Flow Hedges        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning balance (9,347) (13,659) (7,616) (19,805)
Unrealized holding gains (losses), net (5,664) 2,598 (8,447) 7,239
Amounts reclassified from AOCI, net and amortization of unrecognized losses on securities transferred to held to maturity 1,039 1,693 2,091 3,198
Ending balance (13,972) (9,368) (13,972) (9,368)
Unrecognized Gains (Losses) on Debt Securities Held to Maturity        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning balance (17,427) (21,426) (18,164) (21,554)
Amounts reclassified from AOCI, net and amortization of unrecognized losses on securities transferred to held to maturity 674 1,228 1,411 1,356
Ending balance $ (16,753) $ (20,198) $ (16,753) $ (20,198)