Benefit Plans (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Defined Benefit Pension Plans
Defined Benefit Plan, Net Periodic Expense (Benefit)
Interest cost	$ 807	$ 863	$ 2,421	$ 2,590
Expected return on plan assets	(837)	(826)	(2,511)	(2,479)
Settlement loss (gain)	0	22	(6)	50
Net periodic (benefit) expense	(30)	59	(96)	161
Other Postretirement Benefits Plan
Defined Benefit Plan, Net Periodic Expense (Benefit)
Interest cost	6	6	18	18
Amortization of prior service credit	(7)	(31)	(22)	(94)
Amortization of net gain	0	(1)	(1)	(2)
Net periodic (benefit) expense	$ (1)	$ (26)	$ (5)	$ (78)