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EMPLOYEE RETIREMENT PLANS AND POSTRETIREMENT BENEFITS - Fair Value of Plan Assets by Category (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of Plan Assets | $ 18,521 | $ 17,293 | $ 14,903
Fair Value, Inputs, Level 2 [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of Plan Assets | 16,889 | 15,189 |
Fair Value, Inputs, Level 3 [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of Plan Assets | 984 | 1,109 |
Fair Value, Inputs, Level 1 [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of Plan Assets | 648 | 995 |
Multi-asset Fund [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of Plan Assets |  | 5,149 |
Multi-asset Fund [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of Plan Assets |  | 5,149 |
Defined Growth Fund [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of Plan Assets | $ 12,249 | 5,134 |
Investment percentage within Plan Asset category | 66.10% |  |
Defined Growth Fund [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of Plan Assets | $ 12,249 | 5,134 |
Corporate Debt Securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of Plan Assets | $ 4,640 | 4,906 |
Investment percentage within Plan Asset category | 25.10% |  |
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of Plan Assets | $ 4,640 | 4,906 |
Insurance Contract [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of Plan Assets | $ 984 | 1,109 |
Investment percentage within Plan Asset category | 5.30% |  |
Insurance Contract [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of Plan Assets | $ 984 | 1,109 |
Cash [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of Plan Assets | 648 | 995 |
Cash [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of Plan Assets | $ 648 | $ 995 |

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