Accumulated Other Comprehensive Income (AOCI) (Schedule of Items Reclassified to Statement of Income) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other (income)/expense, net	$ 56	$ (6,918)	$ (4,910)	$ (17,891)
Pension settlement expense	0	49,128	0	49,128
Prior service credit	(1,031)	(1,123)	(3,092)	(3,368)
Net actuarial loss	349	967	1,042	2,905
Income before income taxes	36,361	7,640	120,974	100,540
Income tax effect	9,207	(3,183)	39,908	22,273
Net income attributable to the Company	(27,109)	(10,694)	(80,670)	(77,632)
Reclassification out of Accumulated Other Comprehensive Income | Derivative valuation adjustment
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other (income)/expense, net	(3,990)	(106)	(10,891)	2,758
Income tax effect	1,009	(27)	2,755	(752)
Net income attributable to the Company	(2,981)	(133)	(8,136)	2,006
Reclassification out of Accumulated Other Comprehensive Income | Pension and postretirement liability adjustments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Pension settlement expense	0	42,657	0	42,657
Prior service credit	(1,031)	(1,123)	(3,092)	(3,368)
Net actuarial loss	349	967	1,042	2,905
Income before income taxes	(682)	42,501	(2,050)	42,194
Income tax effect	(208)	16,411	(627)	16,317
Net income attributable to the Company	$ 474	$ (26,090)	$ 1,423	$ (25,877)