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, 2022
Dec. 31, 2021
Dec. 31, 2020
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance $ 2,710,071 $ 2,708,490 $ 2,513,102
Other comprehensive (loss) income (436,921) (52,380) 35,440
Ending balance 2,372,737 2,710,071 2,708,490
Unrealized Gains (Losses) on AFS Securities      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance 22,763 74,161 37,877
Other comprehensive income (loss) before reclassification (386,684) (51,329) 45,996
Amounts reclassified from AOCI into earnings 2 (69) (9,712)
Other comprehensive (loss) income (386,682) (51,398) 36,284
Ending balance (363,919) 22,763 74,161
Unrealized Gains (Losses) for AFS Securities Transferred to HTM      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance 35 55 75
Other comprehensive income (loss) before reclassification 0 0 0
Amounts reclassified from AOCI into earnings (18) (20) (20)
Other comprehensive (loss) income (18) (20) (20)
Ending balance 17 35 55
Change in Fair Value of Cash Flow Hedge      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance (1,567) 0 (782)
Other comprehensive income (loss) before reclassification (53,043) (1,520) (699)
Amounts reclassified from AOCI into earnings   (47) 1,481
Other comprehensive (loss) income (53,043) (1,567) 782
Ending balance (54,610) (1,567) 0
Unrealized Gains (Losses) on BOLI      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance (2,596) (3,201) (1,595)
Other comprehensive income (loss) before reclassification 2,205 0 (2,098)
Amounts reclassified from AOCI into earnings 617 605 492
Other comprehensive (loss) income 2,822 605 (1,606)
Ending balance 226 (2,596) (3,201)
AOCI Attributable to Parent      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance 18,635 71,015 35,575
Other comprehensive income (loss) before reclassification (437,522) (52,849) 43,199
Amounts reclassified from AOCI into earnings 601 469 (7,759)
Other comprehensive (loss) income (436,921) (52,380) 35,440
Ending balance $ (418,286) 18,635 71,015
Cumulative Effect, Period of Adoption, Adjustment      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning balance   $ (39,053)  
Ending balance     $ (39,053)