Employee Benefit Plans - Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Retirement Benefits [Abstract]
Current year actuarial loss (gain)	$ 23,289	$ 97,412	$ (264,547)
Recognition of actuarial loss	(9,361)	(37,065)	(49,897)
Recognition of prior service cost	(692)	(691)	(690)
Recognition of curtailment loss	0	0	(5)
Other	2,464	68	(29)
Total recognized in other comprehensive income (loss)	15,700	59,724	(315,168)
Total recognized in net periodic benefit income and other comprehensive income (loss)	$ (28,750)	$ 32,614	$ (334,492)