Benefit Plans - Net Periodic Pension Cost (Details) - Pension Plans - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 6,586	$ 7,529	$ 6,331
Interest cost	10,642	9,846	10,957
Expected return on plan assets	(8,143)	(13,000)	(13,617)
Recognized net actuarial loss	3,990	4,954	4,619
Amortization of prior service costs	0	3	19
Net periodic pension/postretirement benefit cost	$ 13,075	$ 9,332	$ 8,309