Employee Benefits (Details) - Pension Plan - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Net periodic benefit cost
Service cost	$ 822	$ 954	$ 1,643	$ 1,909
Interest cost	2,478	2,526	4,957	5,053
Expected return on plan assets	(3,635)	(3,756)	(7,271)	(7,513)
Amortization of prior service credit	(724)	(820)	(1,448)	(1,640)
Amortization of net loss	0	52	0	104
Net periodic benefit cost	$ (1,059)	$ (1,044)	$ (2,118)	$ (2,087)