Pension Plans - Components of Net Periodic Pension Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Retirement Benefits [Abstract]
Service cost	$ 3,828	$ 5,418
Interest cost	1,603	1,258
Expected return on plan assets	(1,311)	(1,493)
Recognized actuarial loss	(98)	13
Net periodic pension cost	$ 4,022	$ 5,196