Employee and Retiree Benefit Plans - Effects of Fair Value Measurements Using Significant Unobservable Inputs on Changes in Level 3 Plan Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan, Change in Fair Value of Plan Assets, Level 3 Reconciliation [Roll Forward]
Beginning balance	$ 611,302
Ending balance	450,944	$ 611,302
Level 3
Defined Benefit Plan, Change in Fair Value of Plan Assets, Level 3 Reconciliation [Roll Forward]
Beginning balance	82,854
Ending balance	32,734	82,854
Hedged Funds and Other Alternative Strategies | Level 3
Defined Benefit Plan, Change in Fair Value of Plan Assets, Level 3 Reconciliation [Roll Forward]
Beginning balance	82,854	97,685
Relating to assets held at the reporting date	(38,389)	5,206
Purchases, sales and settlements	(11,731)	(20,037)
Ending balance	$ 32,734	$ 82,854