Benefit Plans - Benefit Plans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Pension Benefits [Member]
Benefit Plans [Abstract]
Service cost	$ 0	$ 0
Interest cost	286	289
Expected return on plan assets	(952)	(763)
Amortization of net gain	(349)	(21)
Amortization of prior service cost	0	0
Net periodic benefit	(1,015)	(495)
Other Postretirement Benefits [Member]
Benefit Plans [Abstract]
Service cost	5	5
Interest cost	90	86
Expected return on plan assets	(428)	(381)
Amortization of net gain	(352)	(276)
Amortization of prior service cost	3	3
Net periodic benefit	$ (682)	$ (563)