Employee and Retiree Benefit Plans - Plans' Benefit Obligations and Fair Value of Assets and Statement of Funded Status (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Change in plan assets
Beginning balance	$ 611,302
Ending balance	450,944	$ 611,302
Pension Benefits
Change in benefit obligation
Beginning balance	939,380	981,467
Service cost	7,875	8,199	$ 7,967
Interest cost	22,747	14,784	21,127
Participant contributions	0	0
Actuarial loss (gain)	(238,407)	(24,440)
Medicare Part D subsidy	0	0
Exchange rate changes	(21,018)	(1,764)
Benefits paid	(47,504)	(38,866)
Plan amendments	0	0
Ending balance	663,073	939,380	981,467
Change in plan assets
Beginning balance	611,302	586,720
Actual return on plan assets	(133,395)	33,687
Employer contributions	41,145	31,607
Participant contributions	0	0
Medicare Part D subsidy	0	0
Exchange rate changes	(20,604)	(1,846)
Benefits paid	(47,504)	(38,866)
Ending balance	450,944	611,302	586,720
Funded status and amounts recognized in the Consolidated Balance Sheets at December 31
Deferred charges and other assets	3,584	5,535
Other accrued liabilities	(9,693)	(10,144)
Deferred credits and other liabilities	(206,020)	(323,469)
Funded status and net plan liability recognized at December 31	(212,129)	(328,078)
Other Postretirement Benefits
Change in benefit obligation
Beginning balance	96,133	108,378
Service cost	968	1,295	1,373
Interest cost	2,211	2,071	2,626
Participant contributions	2,283	2,648
Actuarial loss (gain)	(29,533)	(9,519)
Medicare Part D subsidy	331	300
Exchange rate changes	(20)	3
Benefits paid	(4,694)	(4,041)
Plan amendments	0	(5,002)
Ending balance	67,679	96,133	108,378
Change in plan assets
Beginning balance	0	0
Actual return on plan assets	0	0
Employer contributions	2,080	1,093
Participant contributions	2,283	2,648
Medicare Part D subsidy	331	300
Exchange rate changes	0	0
Benefits paid	(4,694)	(4,041)
Ending balance	0	0	$ 0
Funded status and amounts recognized in the Consolidated Balance Sheets at December 31
Deferred charges and other assets	0	0
Other accrued liabilities	(4,830)	(4,867)
Deferred credits and other liabilities	(62,849)	(91,266)
Funded status and net plan liability recognized at December 31	$ (67,679)	$ (96,133)