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DERIVATIVES - (Schedule of Cash Flow Hedges Included in Financial Statements) (Details) - Interest Rate Swap [Member] - USD ($) | Sep. 30, 2021 | Jun. 30, 2021 | Dec. 31, 2020
--- | --- | --- | ---
Derivative [Line Items] |  |  |
Notional Amount |  | $ 15,000,000.0 |
Designated as Hedging Instrument [Member] |  |  |
Derivative [Line Items] |  |  |
Notional Amount | $ 230,000,000.0 |  | $ 270,000,000.0
Fair Value | (5,267,000) |  | (9,616,000)
Designated as Hedging Instrument [Member] | Other Liabilities [Member] |  |  |
Derivative [Line Items] |  |  |
Notional Amount | 230,000,000 |  | 270,000,000
Fair Value | $ (5,267,000) |  | $ (9,616,000)

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