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COMMITMENTS AND CONTINGENCIES (Schedule of Securities Pledged as Collateral) (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
AFS Securities | $ 2,741,816 | $ 3,481,650
HTM securities | 801,887 | 693,774
Loans | 14,338,374 | 13,096,056
Total assets | 20,461,138 | 20,064,796
Asset Pledged as Collateral [Member] |  |
Cash | 196,180 | 82,299
AFS Securities | 993,446 | 964,484
HTM securities | 580,415 | 473,228
Loans | 3,137,996 | 4,655,326
Total assets | 4,908,037 | 6,175,337
Public deposits | Asset Pledged as Collateral [Member] |  |
Cash | 0 | 0
AFS Securities | 713,761 | 703,489
HTM securities | 579,550 | 472,243
Loans | 0 | 0
Total assets | 1,293,311 | 1,175,732
Repurchase agreements | Asset Pledged as Collateral [Member] |  |
Cash | 0 | 0
AFS Securities | 159,221 | 130,217
HTM securities | 0 | 0
Loans | 0 | 0
Total assets | 159,221 | 130,217
FHLB advances | Asset Pledged as Collateral [Member] |  |
Cash | 0 | 0
AFS Securities | 36,039 | 43,722
HTM securities | 0 | 0
Loans | 2,679,316 | 4,263,259
Total assets | 2,715,355 | 4,306,981
Derivatives | Asset Pledged as Collateral [Member] |  |
Cash | 196,180 | 82,299
AFS Securities | 57,114 | 65,053
HTM securities | 0 | 0
Loans | 0 | 0
Total assets | 253,294 | 147,352
Fed Funds | Asset Pledged as Collateral [Member] |  |
Cash | 0 | 0
AFS Securities | 0 |
HTM securities | 0 | 0
Loans | 458,680 | 392,067
Total assets | 458,680 | 392,067
Other purposes | Asset Pledged as Collateral [Member] |  |
Cash | 0 | 0
AFS Securities | 27,311 | 22,003
HTM securities | 865 | 985
Loans | 0 | 0
Total assets | $ 28,176 | $ 22,988

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