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, 2025
Mar. 31, 2024
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance $ 3,142,879 $ 2,556,327
Net current period other comprehensive (loss) income 25,971 (30,949)
Ending balance 3,185,216 2,548,928
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member]    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance (317,142) (302,532)
Other comprehensive income (loss) before reclassification 15,754 (20,501)
Amounts reclassified from AOCI into earnings 81 (2)
Net current period other comprehensive (loss) income 15,835 (20,503)
Ending balance (301,307) (323,035)
Unrealized Gains (Losses) for AFS Securities Transferred to HTM    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance 0 6
Other comprehensive income (loss) before reclassification 0 0
Amounts reclassified from AOCI into earnings 0 (2)
Net current period other comprehensive (loss) income 0 (2)
Ending balance 0 4
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance (43,078) (42,165)
Other comprehensive income (loss) before reclassification 10,336 (10,253)
Amounts reclassified from AOCI into earnings 0 0
Net current period other comprehensive (loss) income 10,336 (10,253)
Ending balance (32,742) (52,418)
Unrealized Gains (Losses) on BOLI    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance 534 1,342
Other comprehensive income (loss) before reclassification (10) (16)
Amounts reclassified from AOCI into earnings (190) (175)
Net current period other comprehensive (loss) income (200) (191)
Ending balance 334 1,151
AOCI Attributable to Parent [Member]    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance (359,686) (343,349)
Other comprehensive income (loss) before reclassification 26,080 (30,770)
Amounts reclassified from AOCI into earnings (109) (179)
Net current period other comprehensive (loss) income 25,971 (30,949)
Ending balance $ (333,715) $ (374,298)