EMPLOYEE BENEFIT PLANS Narrative 4 (Details) - USD ($) $ in Thousands |
12 Months Ended | |
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Dec. 31, 2020 |
Dec. 31, 2019 |
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| Pension Plan [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Plan contributions | $ 11,453 | $ 11,132 |
| Estimated future employer contributions in next fiscal year | 9,400 | |
| Other Postretirement Benefit Plans [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Plan contributions | 237 | $ 155 |
| Estimated future employer contributions in next fiscal year | $ 300 | |
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- Definition Amount of contribution received by defined benefit plan from employer which increases plan assets. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount of contribution expected to be received by defined benefit plan from employer in next fiscal year following current fiscal year. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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