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INVESTMENT SECURITIES (Schedule of amortized cost and fair value of securities held-to-maturity) (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Schedule of Held-to-maturity Securities [Line Items] |  |
Amortized Cost | $ 501,525 | $ 510,425
Total Securities | 436,100 | 437,300
Held-to-maturity Securities |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Amortized Cost | 501,525 | 510,425
Gross Unrealized/Unrecognized Gains |  | 0
Gross Unrealized/Unrecognized Losses | (65,394) | (73,135)
Total Securities | 436,131 | 437,290
Held-to-maturity Securities | US Treasury Securities |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Amortized Cost | 29,863 | 29,852
Gross Unrealized/Unrecognized Gains |  | 0
Gross Unrealized/Unrecognized Losses | (1,854) | (2,223)
Total Securities | 28,009 | 27,629
Held-to-maturity Securities | U.S. State and Municipal securities |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Amortized Cost | 15,753 | 15,814
Gross Unrealized/Unrecognized Gains |  | 0
Gross Unrealized/Unrecognized Losses | (2,096) | (2,609)
Total Securities | 13,657 | 13,205
Held-to-maturity Securities | Residential MBS |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Amortized Cost | 447,803 | 456,648
Gross Unrealized/Unrecognized Gains |  | 0
Gross Unrealized/Unrecognized Losses | (60,302) | (67,027)
Total Securities | 387,501 | 389,621
Held-to-maturity Securities | Commercial MBS |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Amortized Cost | 8,106 | 8,111
Gross Unrealized/Unrecognized Gains |  | 0
Gross Unrealized/Unrecognized Losses | (1,142) | (1,276)
Total Securities | $ 6,964 | $ 6,835

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- Definition Amount excluding accrued interest, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919230-210447 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 3B -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL120267963-210447 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446 + Details
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