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Benefit Plans (Tables)
3 Months Ended
Mar. 31, 2024
Retirement Benefits [Abstract]  
Components of Net Periodic Expense (Benefit)
Defined Benefit Pension Plans
Three months ended
March 31,
20242023
Interest cost$808 $871 
Expected return on plan assets(827)(837)
Net periodic (benefit) expense$(19)$34 
Other Postretirement Benefit Plan
Three months ended
March 31,
20242023
Interest cost$$
Amortization of prior service credit(7)(31)
Amortization of net gain(1)(1)
Net periodic benefit$(2)$(26)