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POSTRETIREMENT BENEFITS (cash flows) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
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
2024	4,711
2025	4,356
2026	3,907
2027	3,560
2028	3,277
2029 - 2033	13,049
Pension plan [Member]
Postretirement benefits [Line Items]
Cash surrender value of insurance polices that fund pension plan	7,713	$ 7,429
Expected benefit payments
2024	320
2025	300
2026	280
2027	260
2028	250
2029 - 2033	$ 910