EMPLOYEE BENEFIT PLANS - Change in PBO and Assets and Reconciliations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Amounts Recognized in the Consolidated Balance Sheets Consist of:
Noncurrent liabilities	$ (10,478)	$ (23,344)
Pension Benefits
Change in Projected Benefit Obligation
Projected benefit obligation at beginning of year	100,469	90,261
Service cost	0	0	$ 0
Interest cost	2,228	2,706	3,197
Actuarial loss (gain)	(5,112)	11,413
Benefits paid	(3,519)	(3,413)
Expenses paid	(267)	(498)
Projected benefit obligation at end of year	93,799	100,469	90,261
Change in Plan Assets
Fair value of plan assets at beginning of year	78,883	66,460
Actual return on plan assets	9,896	13,329
Employer contributions	86	3,005
Benefits paid	(3,519)	(3,413)
Other expense	(267)	(498)
Fair value of plan assets at end of year	85,079	78,883	66,460
Funded Status at End of Year:
Net accrued benefit cost	(8,720)	(21,586)
Amounts Recognized in the Consolidated Balance Sheets Consist of:
Current liabilities	(86)	(86)
Noncurrent liabilities	(8,634)	(21,500)
Net amount recognized	(8,720)	(21,586)
Postretirement
Change in Projected Benefit Obligation
Projected benefit obligation at beginning of year	1,886	1,634
Service cost	8	6	6
Interest cost	45	51	54
Actuarial loss (gain)	(35)	209
Benefits paid	(14)	(14)
Expenses paid	0	0
Projected benefit obligation at end of year	1,890	1,886	1,634
Change in Plan Assets
Fair value of plan assets at beginning of year	0	0
Actual return on plan assets	0	0
Employer contributions	14	14
Benefits paid	(14)	(14)
Other expense	0	0
Fair value of plan assets at end of year	0	0	$ 0
Funded Status at End of Year:
Net accrued benefit cost	(1,890)	(1,886)
Amounts Recognized in the Consolidated Balance Sheets Consist of:
Current liabilities	(46)	(41)
Noncurrent liabilities	(1,844)	(1,845)
Net amount recognized	$ (1,890)	$ (1,886)