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SECURITIES - Carrying balances of securities (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
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SECURITIES |  |
Debt securities available-for-sale | $ 942,168 | $ 922,869
Debt securities held-to-maturity | 336,185 | 68,395
Equity securities with readily determinable fair value | 3,443 | 3,292
Equity securities with no readily determinable fair value | 1,927 | 1,552
Total securities | $ 1,283,723 | $ 996,108

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- Definition Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=123594786&loc=SL75136599-209740 + Details
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