Employee Benefit Plans Summary of Pension Plan and Postretirement Plan Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 729	$ 768
Expected return on plan assets	(1,042)	(978)
Net periodic postretirement benefit	(313)	(210)
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	7	9
Net accretion and deferral	(137)	(136)
Net periodic postretirement benefit	$ (130)	$ (127)