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COMMITMENTS AND CONTINGENCIES COMMITMENTS AND CONTINGENCIES (Summary of Contractual and Notional Amounts of FInancial Instruments) (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2020 | Dec. 31, 2019
Financial Instruments [Line Items] |  |
Schedule Of Contractual And Notional Amounts Of Financial Instruments Table [Table Text Block] | The following is a summary of the Company's contractual off-balance sheet commitments for the dates indicated:
(In thousands) |  | March 31, 2020 |  | December 31, 2019
Commitments to extend credit |  | $ | 764,368 |  |  | $ | 734,649 |
Standby letters of credit |  | 5,002 |  |  | 5,211 |
Total |  | $ | 769,370 |  |  | $ | 739,860 |
Contractual Amounts Of Financial Instrument | $ 769,370 | $ 739,860
Commitments to Extend Credit [Member] |  |
Financial Instruments [Line Items] |  |
Contractual Amounts Of Financial Instrument | 764,368 | 734,649
Standby Letters of Credit [Member] |  |
Financial Instruments [Line Items] |  |
Contractual Amounts Of Financial Instrument | $ 5,002 | $ 5,211

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