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INVESTMENT SECURITIES - Additional Information (Details) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2022 USD ($) security | Mar. 31, 2021 USD ($) | Dec. 31, 2021 USD ($) security
Debt Securities, Available-for-sale [Line Items] |  |  |
Amortized cost basis, transferred from the available-for-sale portfolio to the held-to-maturity portfolio | $ 346,000,000 |  |
Available-for-sale securities, accumulated gross unrealized gain (loss), before tax | (16,600,000) |  |
Net unrealized loss on securities transferred from available-for-sale to held-to-maturity | $ 0 |  | $ 0
Securities available for sale portfolio | security | 79 |  | 119
Available for sale securities in unrealized loss position | security | 56 |  | 46
OTTI recorded | $ 0 | $ 0 |
Collateral Pledged |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Securities pledged | 28,800,000 |  | $ 28,900,000
Available-for-sale Securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Debt securities, available-for-sale and held to maturity, accrued interest, after allowance for credit loss | $ 6,000,000 |  | $ 4,700,000

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- Definition Debt Securities, Available-For-Sale And Held To Maturity, Accrued Interest, After Allowance For Credit Loss + References No definition available. + Details
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- Definition Amount, before tax, of unrealized gain (loss) in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References No definition available. + Details
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- Definition Amount of allowance for credit loss on investment in debt security measured at amortized cost (held-to-maturity) and investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (aaa) -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aaa) -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27232-111563 + Details
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