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Reference 61: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 6
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2709-114920

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POSTRETIREMENT BENEFITS (cash flows) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Postretirement benefits [Line Items]
Postretirement benefit plan, contributions [Extensible List]	Postretirement benefit plan [Member]	Postretirement benefit plan [Member]
Company contributions	$ 0	$ 0	$ 0
Postretirement benefit plan [Member]
Expected benefit payments
2022	6,190
2023	5,846
2024	5,314
2025	4,810
2026	4,338
2027 - 2031	17,328
Pension plan [Member]
Postretirement benefits [Line Items]
Cash surrender value of insurance polices that fund pension plan	7,370	$ 7,095
Expected benefit payments
2022	320
2023	320
2024	310
2025	300
2026	290
2027 - 2031	$ 1,190