Accumulated Other Comprehensive Income (Loss) (AOCI balances) (Details 2) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
As of	$ 4,827,327	$ 4,286,815
Other Comprehensive (Loss) Income, Net of Tax	(6,342)	13,096
As of	4,766,804	4,325,765
AOCI Including Portion Attributable to Noncontrolling Interest [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
As of	587,080
Other comprehensive (loss) income before reclassifications	(5,949)
Net amount reclassified from accumulated other comprehensive income (loss)	(393)
Other Comprehensive (Loss) Income, Net of Tax	(6,342)
As of	580,738
Cumulative Foreign Currency Translation Adjustment [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
As of	(12,262)
Other comprehensive (loss) income before reclassifications	(6,248)
Net amount reclassified from accumulated other comprehensive income (loss)	0
Other Comprehensive (Loss) Income, Net of Tax	(6,248)	14,267
As of	(18,510)
Unrealized Gain on Pensions and Other Postretirement Plans [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
As of	601,064
Other comprehensive (loss) income before reclassifications	0
Net amount reclassified from accumulated other comprehensive income (loss)	(557)	(668)
Other Comprehensive (Loss) Income, Net of Tax	(557)	(668)
As of	600,507
Cash Flow Hedges [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
As of	(1,722)
Other comprehensive (loss) income before reclassifications	299
Net amount reclassified from accumulated other comprehensive income (loss)	164
Other Comprehensive (Loss) Income, Net of Tax	463	$ (503)
As of	$ (1,259)