RETIREMENT PLANS - Net Periodic Pension Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Jul. 22, 2021
Components of the plan's net periodic pension cost
Loss on pension settlement			$ 1,725
Pension benefits
Components of the plan's net periodic pension cost
Service cost	$ 57	$ 54	114	$ 108
Interest cost	565	572	1,130	1,144
Expected return on plan assets	(925)	(687)	(1,850)	(1,374)
Loss on pension settlement	(1,725)		(1,725)
Net periodic pension expense (benefit)	(2,028)	(61)	(2,331)	(122)
Funded status of plan
Projected benefit obligation					$ 15,400
Plan Net Assets					12,100
Postretirement benefits
Components of the plan's net periodic pension cost
Service cost	36	35	72	70
Interest cost	33	41	66	82
Net periodic pension expense (benefit)	$ 69	$ 76	$ 138	$ 152
Funded status of plan
Projected benefit obligation					$ 400