Accumulated Other Comprehensive Income (AOCI) (Schedule of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at start of the period	$ 821,782	$ 867,543	$ 877,605
Other comprehensive income/(loss) before reclassifications, net of tax		(1,123)	(62,272)
Pension settlement expense, net of tax	26,198		26,198
Net current period other comprehensive income		(10,682)	(34,389)
Balance at end of the period	820,188	921,633	820,188
Accumulated items of other comprehensive income
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at start of the period	(173,700)	(144,927)	(145,984)
Pension settlement expense, net of tax	26,198
Balance at end of the period	(180,373)	(155,609)	(180,373)
Translation adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at start of the period		(146,851)	(105,880)
Other comprehensive income/(loss) before reclassifications, net of tax		(4,326)	(79,841)
Pension settlement expense, net of tax			0
Net current period other comprehensive income		(4,326)	(79,841)
Balance at end of the period	(185,721)	(151,177)	(185,721)
Pension and postretirement liability adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at start of the period		(15,783)	(38,490)
Other comprehensive income/(loss) before reclassifications, net of tax		(183)	0
Amounts reclassified to the Consolidated Statements of Income, net of tax		(1,423)	(321)
Pension settlement expense, net of tax			26,198
Net current period other comprehensive income		(1,606)	25,877
Balance at end of the period	(12,613)	(17,389)	(12,613)
Derivative valuation adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at start of the period		17,707	(1,614)
Other comprehensive income/(loss) before reclassifications, net of tax		3,386	17,569
Amounts reclassified to the Consolidated Statements of Income, net of tax		(8,136)	2,006
Pension settlement expense, net of tax			0
Net current period other comprehensive income		(4,750)	19,575
Balance at end of the period	$ 17,961	$ 12,957	$ 17,961