Quarterly report pursuant to Section 13 or 15(d)

Net Periodic Pension Expense Benefit (Details)

v3.23.1
Net Periodic Pension Expense Benefit (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Defined Benefit Pension Plans    
Defined Benefit Plan, Net Periodic Expense (Benefit)    
Interest cost $ 871 $ 604
Expected return on plan assets (837) (1,110)
Net periodic expense (benefit) 34 (506)
Other Postretirement Benefits Plan    
Defined Benefit Plan, Net Periodic Expense (Benefit)    
Interest cost 6 4
Amortization of prior service credit (31) (53)
Amortization of net loss (1) 1
Net periodic expense (benefit) $ (26) $ (48)