Employee Benefit Plans - Components of Net Periodic Benefit Income for the Pension Plans (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Retirement Benefits [Abstract]
Service cost	$ 1,504	$ 2,532	$ 4,501	$ 7,734
Interest cost	26,141	18,804	78,394	56,520
Expected return on plan assets	(41,270)	(37,569)	(123,773)	(112,887)
Amortization of prior service cost	173	172	519	516
Amortization of actuarial loss	2,340	9,264	7,021	27,818
Net periodic benefit income	$ (11,112)	$ (6,797)	$ (33,338)	$ (20,299)