Accumulated Other Comprehensive Income (Loss) - Schedule of reclassifications (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Accumulated Other Comprehensive Income (Loss)
Interest expense	$ (4,126)	$ (7,047)
Net loss resulting from early retirement of debt	1,126	4,120
Interest and investment income	3,336	24
Total before tax	235,246	272,327
Provision for income taxes	37,138	455
Net income	198,108	271,872
Reclassification out of Accumulated Other Comprehensive Income | Derivative instruments
Accumulated Other Comprehensive Income (Loss)
Interest expense		(112)
Net loss resulting from early retirement of debt		(1,428)
Provision for income taxes	0	0
Net income		(1,540)
Reclassification out of Accumulated Other Comprehensive Income | Pension, postretirement and other post-employment benefits
Accumulated Other Comprehensive Income (Loss)
Amortization of actuarial gains (losses), net	2,858	627
Amortization of prior service credits	37	(105)
Total before tax	2,895	522
Provision for income taxes	636	0
Net income	2,259	522
Reclassification out of Accumulated Other Comprehensive Income | Available-for-sale securities
Accumulated Other Comprehensive Income (Loss)
Interest and investment income	(22)	(182)
Provision for income taxes	(5)	0
Net income	$ (17)	$ (182)