PENSION AND OTHER BENEFIT PLANS - Amounts recognized in AOCI, net of tax (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Amounts recognized in AOCI, net of tax
Total	$ 15,831	$ (13,403)	$ (6,009)
Pension Benefits
Amounts recognized in AOCI, net of tax
Prior service cost/(credit)	(648)	(288)
Net (gain) loss	16,593	(13,152)
Total	15,945	(13,440)
Post-retirement Benefits
Amounts recognized in AOCI, net of tax
Prior service cost/(credit)	135	136
Net (gain) loss	(249)	(99)
Total	$ (114)	$ 37

Amount, after tax and reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan, attributable to parent.

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