Quarterly report pursuant to Section 13 or 15(d)

PENSION BENEFITS - Components of Net Periodic Benefit (Credit) Cost Expense (Details)

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PENSION BENEFITS - Components of Net Periodic Benefit (Credit) Cost Expense (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2020
Jun. 25, 2020
Sep. 30, 2021
Retirement Benefits [Abstract]          
Service cost $ 15 $ 47 $ 47 $ 41 $ 47
Interest cost 259 273 273 593 778
Expected return on plan assets (398) (392) (392) (817) (1,197)
Recognized actuarial loss 9 0 0 276 27
Amortization of prior service cost 0 0 0 33 0
Settlement/curtailment gain (97) 0 0 0 (97)
Net periodic benefit (credit) cost $ (212) $ (72) $ (72) $ 126 $ (442)
Defined Benefit Plan, Type [Extensible List] us-gaap:PensionPlansDefinedBenefitMember       us-gaap:PensionPlansDefinedBenefitMember