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INVESTMENT SECURITIES - Narrative (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items] |  |  |
HTM securities in unrealized loss position | $ 0 | $ 0 |
Security pledged under repurchase agreement | 0 | 0 |
Tax exempt interest income on available-for-sale securities | $ 10,200,000 | $ 10,700,000 | $ 10,200,000
Mortgage Backed Securities And Collateralized Mortgage Obligations |  |  |
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items] |  |  |
Weighted average yield | 1.82% | 1.92% |

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- Definition The carrying amount as of the date of the latest financial statement presented of securities which are owned but transferred to serve as collateral for repurchase agreements, and for which the transferee does not have the right by contract or custom to sell or re-pledge them to an unrelated party. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 1A -Subparagraph (b)(1)(i) -URI http://asc.fasb.org/extlink&oid=109249958&loc=SL6224234-111729 + Details
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