Quarterly report [Sections 13 or 15(d)]

STOCKHOLDERS' EQUITY (Change in Accumulated Other Comprehensive Income) (Details)

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STOCKHOLDERS' EQUITY (Change in Accumulated Other Comprehensive Income) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance $ 5,006,398 $ 3,142,879
Other comprehensive (loss) income (22,401) 25,971
Ending balance 5,052,316 3,185,216
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member]    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance (234,702) (317,142)
Other comprehensive income (loss) before reclassification (20,538) 15,754
Amounts reclassified from AOCI into earnings (1) 81
Other comprehensive (loss) income (20,539) 15,835
Ending balance (255,241) (301,307)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance (21,165) (43,078)
Other comprehensive income (loss) before reclassification (1,982) 10,336
Amounts reclassified from AOCI into earnings 0 0
Other comprehensive (loss) income (1,982) 10,336
Ending balance (23,147) (32,742)
Unrealized Gains (Losses) on BOLI    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance (220) 534
Other comprehensive income (loss) before reclassification 323 (10)
Amounts reclassified from AOCI into earnings (203) (190)
Other comprehensive (loss) income 120 (200)
Ending balance (100) 334
AOCI Attributable to Parent [Member]    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance (256,087) (359,686)
Other comprehensive income (loss) before reclassification (22,197) 26,080
Amounts reclassified from AOCI into earnings (204) (109)
Other comprehensive (loss) income (22,401) 25,971
Ending balance $ (278,488) $ (333,715)