Quarterly report pursuant to Section 13 or 15(d)

COMMITMENTS AND CONTINGENCIES (Schedule of Securities Pledged as Collateral) (Details)

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COMMITMENTS AND CONTINGENCIES (Schedule of Securities Pledged as Collateral) (Details) - USD ($)
$ in Thousands
Sep. 30, 2024
Dec. 31, 2023
AFS Securities $ 2,608,182 $ 2,231,261
HTM securities 776,827 808,074
Loans 18,176,614 15,502,861
Total assets 24,803,723 21,166,197
Asset Pledged as Collateral [Member]    
Cash 118,729 154,382
AFS Securities 1,588,105 1,460,754
HTM securities 626,940 638,850
Loans 9,692,289 3,379,394
Total assets 12,026,063 5,633,380
Deposits [Member] | Asset Pledged as Collateral [Member]    
Cash 0 0
AFS Securities 807,268 749,398
HTM securities 617,043 621,494
Loans 0 0
Total assets 1,424,311 1,370,892
Repurchase Agreements [Member] | Asset Pledged as Collateral [Member]    
Cash 0 0
AFS Securities 84,094 174,075
HTM securities 0 0
Loans 0 0
Total assets 84,094 174,075
Federal Home Loan Bank Advances [Member] | Asset Pledged as Collateral [Member]    
Cash 0 0
AFS Securities 622,906 48,718
HTM securities 9,897 0
Loans 4,213,624 2,960,926
Total assets 4,846,427 3,009,644
Derivative [Member] | Asset Pledged as Collateral [Member]    
Cash 118,729 154,382
AFS Securities 62,683 61,311
HTM securities 0 0
Loans 0 0
Total assets 181,412 215,693
Federal Reserve Discount Window | Asset Pledged as Collateral [Member]    
Cash 0 0
AFS Securities 0 411,661
HTM securities 0 17,356
Loans 5,478,665 418,468
Total assets 5,478,665 847,485
Other purposes | Asset Pledged as Collateral [Member]    
Cash 0 0
AFS Securities 11,154 15,591
HTM securities 0 0
Loans 0 0
Total assets $ 11,154 $ 15,591