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EMPLOYEE BENEFIT PLANS - SERP changes in benefit obligation, the funded status of the plan, components of pension expense (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Change in Projected Benefit Obligation: |  |  |
Actuarial (Gain) Loss | $ (31,339,000) | $ 27,924,000 | $ 7,642,000
Supplemental Executive Retirement Plan ("SERP") [Member] |  |  |
Change in Projected Benefit Obligation: |  |  |
Benefit Obligation at Beginning of Year | 13,402,000 | 10,244,000 | 8,860,000
Service Cost | 35,000 | 31,000 | 0
Interest Cost | 243,000 | 321,000 | 349,000
Actuarial (Gain) Loss | (146,000) | 1,826,000 | 1,035,000
Plan Amendments | 0 | 980,000 | 0
Projected Benefit Obligation at End of Year | 13,534,000 | 13,402,000 | 10,244,000
Funded Status of Plan and Accrued Liability Recognized at End of Year: |  |  |
Other Liabilities | 13,534,000 | 13,402,000 | 10,244,000
Accumulated Benefit Obligation at End of Year | 12,803,000 | 12,339,000 | 8,778,000
Components of Net Periodic Benefit Costs: |  |  |
Service Cost | 35,000 | 31,000 | 0
Interest Cost | 243,000 | 321,000 | 349,000
Amortization of Prior Service Cost | 277,000 | 327,000 | 0
Net Loss Amortization | 970,000 | 503,000 | 761,000
Net Periodic Benefit Cost | $ 1,525,000 | $ 1,182,000 | $ 1,110,000
Weighted-average used to determine the benefit obligations: |  |  |
Discount Rate (in percent) | 2.80% | 2.38% | 3.16%
Rate of Compensation Increase (in percent) | 4.40% | 4.00% | 4.00%
Measurement Date | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Weighted-Average Assumptions Used to Determine Benefit Cost: |  |  |
Discount Rate (in percent) | 2.38% | 3.16% | 4.23%
Rate of Compensation Increase (in percent) | 4.00% | 3.50% | 3.50%
Amortization Amounts from Accumulated Other Comprehensive Income: |  |  |
Net Actuarial Loss (Gain) | $ (146,000) | $ 1,826,000 | $ 1,035,000
Prior Service Cost | (219,000) | 895,000 | 0
Net Loss | (970,000) | (458,000) | (761,000)
Deferred Tax (Benefit) Expense | 154,000 | (573,000) | (70,000)
Other Comprehensive Loss (Gain), net of tax | (1,181,000) | 1,690,000 | 204,000
Amounts Recognized in Accumulated Other Comprehensive Income: |  |  |
Net Actuarial Loss | (1,875,000) | (2,991,000) | 1,622,000
Prior Service Cost | 429,000 | 895,000 | 0
Deferred Tax Benefit | (584,000) | (985,000) | (411,000)
Accumulated Other Comprehensive Loss, net of tax | $ 1,720,000 | $ 2,901,000 | $ 1,211,000

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- Definition Month-end measurement date applicable when an accounting policy election is made to measure plan assets and benefit obligations as of the month-end that is closest to the fiscal year-end, in YYYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (u) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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