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REGULATORY CAPITAL REQUIREMENTS Regulatory Capital Requirements (Details Textual) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Debt Instrument [Line Items] |  |
Dividends received from subsidiaries | $ 77.6 | $ 166.0
Junior Subordinated Debt [Member] |  |
Debt Instrument [Line Items] |  |
Debt Instrument, Face Amount | $ 61.0 | $ 61.0

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