Annual report pursuant to Section 13 and 15(d)

Pension and Other Postretirement Benefits - Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income (Details)

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Pension and Other Postretirement Benefits - Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Share-Based Payment Arrangement [Abstract]      
Net actuarial (gain) loss $ (4,422) $ (1,990) $ 1,626
Recognized actuarial loss (41) (144) (66)
Total recognized in other comprehensive (income) loss, before taxes (4,463) (2,134) 1,560
Total recognized in net benefit cost and other comprehensive (income) loss, before taxes $ (1,958) $ 978 $ 3,217