Annual report pursuant to Section 13 and 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
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance $ 2,372,737 $ 2,710,071 $ 2,708,490
Other comprehensive income (loss) 74,937 (436,921) (52,380)
Ending balance 2,556,327 2,372,737 2,710,071
Unrealized Gains (Losses) on AFS Securities      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance (363,919) 22,763 74,161
Other comprehensive loss before reclassification 29,006 (386,684) (51,329)
Amounts reclassified from AOCI into earnings 32,381 2 (69)
Other comprehensive income (loss) 61,387 (386,682) (51,398)
Ending balance (302,532) (363,919) 22,763
Unrealized Gains (Losses) for AFS Securities Transferred to HTM      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance 17 35 55
Other comprehensive loss before reclassification 0 0 0
Amounts reclassified from AOCI into earnings (11) (18) (20)
Other comprehensive income (loss) (11) (18) (20)
Ending balance 6 17 35
Change in Fair Value of Cash Flow Hedge      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance (54,610) (1,567) 0
Other comprehensive loss before reclassification 12,445 (53,043) (1,520)
Amounts reclassified from AOCI into earnings   0 (47)
Other comprehensive income (loss) 12,445 (53,043) (1,567)
Ending balance (42,165) (54,610) (1,567)
Unrealized Gains (Losses) on BOLI      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance 226 (2,596) (3,201)
Other comprehensive loss before reclassification 10 2,205 0
Amounts reclassified from AOCI into earnings 1,106 617 605
Other comprehensive income (loss) 1,116 2,822 605
Ending balance 1,342 226 (2,596)
AOCI Attributable to Parent      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance (418,286) 18,635 71,015
Other comprehensive loss before reclassification 41,461 (437,522) (52,849)
Amounts reclassified from AOCI into earnings 33,476 601 469
Other comprehensive income (loss) 74,937 (436,921) (52,380)
Ending balance $ (343,349) $ (418,286) $ 18,635