PENSION AND OTHER POSTRETIREMENT BENEFITS - Schedule of Defined Benefit Plans Disclosure (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service Cost	$ 1,241	$ 1,519	$ 3,880	$ 4,701
Interest Cost	3,681	3,404	10,510	9,876
Expected Return on Plan Assets	(5,736)	(6,154)	(18,137)	(17,821)
Amortizations:
Prior Service Cost	17	25	53	73
Actuarial Loss	2,014	3,325	5,691	9,713
Net Periodic Benefit Cost	1,217	2,119	1,997	6,542
Settlement Cost	202	0	202	0
Capitalized Benefit Cost	(409)	(577)	(1,405)	(1,708)
Deferred Benefit Cost (Credit)	8	(339)	677	(971)
Total Net Periodic Benefit Expense	1,018	1,203	1,471	3,863
Other Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Service Cost	154	212	499	638
Interest Cost	494	475	1,499	1,424
Expected Return on Plan Assets	(1,692)	(1,436)	(5,075)	(4,308)
Amortizations:
Prior Service Cost	(156)	(156)	(468)	(468)
Actuarial Loss	25	273	94	817
Net Periodic Benefit Cost	(1,175)	(632)	(3,451)	(1,897)
Capitalized Benefit Cost	(49)	(108)	(169)	(320)
Deferred Benefit Cost (Credit)	355	337	1,420	1,010
Total Net Periodic Benefit Expense	$ (869)	$ (403)	$ (2,200)	$ (1,207)