Employee Benefits - Summary of Components of Net Pension Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Components of net periodic benefit cost:
Service cost	$ 8,094	$ 7,896	$ 24,278	$ 23,690
Interest cost	2,429	1,269	7,289	3,805
Expected return on plan assets	(9,280)	(8,141)	(27,842)	(24,424)
Prior service credit	(2,971)	(2,945)	(8,911)	(8,835)
Recognized net actuarial loss	2,799	3,537	8,395	10,612
Net periodic benefit cost	$ 1,071	$ 1,616	$ 3,209	$ 4,848