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DERIVATIVES - Offsetting (Details) - Not designated as hedging instruments - USD ($) $ in Millions | Dec. 31, 2023 | Jun. 30, 2023
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Interest rate swap |  |
DERIVATIVES |  |
Derivative notional amount | $ 433.6 | $ 455.8
Interest rate swap - Commercial borrowers |  |
DERIVATIVES |  |
Derivative notional amount | 216.8 | 227.9
Interest rate swap - Third party counterparties |  |
DERIVATIVES |  |
Derivative notional amount | $ 216.8 | $ 227.9

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