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Benefit Plans (Tables)
3 Months Ended
Mar. 31, 2023
Defined Benefit Pension Plans  
Defined Benefit Plan Disclosure  
Components of Net Periodic Expense (Benefit)
Defined Benefit Pension Plans
Three months ended
March 31,
20232022
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 Disclosure  
Components of Net Periodic Expense (Benefit)
Other Postretirement Benefit Plan
Three months ended
March 31,
20232022
Interest cost$$
Amortization of prior service credit(31)(53)
Amortization of net loss(1)
Net periodic benefit$(26)$(48)