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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME        
Net actuarial loss, tax (benefit)   $ (310) $ (3) $ (100)
Pension settlement expense, tax   651 23 1,072
Amortization of unrecognized net periodic benefit costs (credit), tax $ (38) 75 (114) 252
Change in unrealized income (loss) on interest rate swap, tax (benefit) 48 (120) (366) (425)
Change in foreign currency translation, tax expense (benefit) $ 246 $ (12) $ (94) $ 108