Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
AOCI Attributable to Parent, Net of Tax
Balance, beginning of period	$ 2,553,244
Other comprehensive loss, before reclassifications	(177,690)	$ 139,595	$ 146,462
Income tax (expense) benefit	30,026	(41,061)	(28,005)
Total other comprehensive income before reclassifications, net of tax	(147,664)	98,534	118,457
Reclassifications	59,648	186,188	(82,555)
Income tax benefit (expense)	(12,994)	(42,224)	17,630
Total reclassification from other comprehensive income, net of tax	46,654	143,964	(64,925)
Other comprehensive loss	(101,010)	242,498	53,532
Balance, end of period	2,903,519	2,553,244
Accumulated Other Comprehensive Loss
AOCI Attributable to Parent, Net of Tax
Balance, beginning of period	(240,919)	(483,417)	(536,949)
Balance, end of period	(341,929)	(240,919)	(483,417)
Foreign currency translation adjustments
AOCI Attributable to Parent, Net of Tax
Balance, beginning of period	(44,401)	(7,589)	(40,813)
Other comprehensive loss, before reclassifications	(32,769)	(38,988)	37,088
Income tax (expense) benefit	(3,101)	2,176	(3,864)
Total other comprehensive income before reclassifications, net of tax	(35,870)	(36,812)	33,224
Reclassifications	0	0	0
Income tax benefit (expense)	0	0	0
Total reclassification from other comprehensive income, net of tax	0	0	0
Other comprehensive loss	(35,870)	(36,812)	33,224
Balance, end of period	(80,271)	(44,401)	(7,589)
Derivative financial instruments
AOCI Attributable to Parent, Net of Tax
Balance, beginning of period	(2,005)	(46,116)	(14,586)
Other comprehensive loss, before reclassifications	(44,767)	(73,207)	107,181
Income tax (expense) benefit	9,611	15,883	(23,626)
Total other comprehensive income before reclassifications, net of tax	(35,156)	(57,324)	83,555
Reclassifications	33,598	130,609	(148,107)
Income tax benefit (expense)	(6,877)	(29,174)	33,022
Total reclassification from other comprehensive income, net of tax	26,721	101,435	(115,085)
Other comprehensive loss	(8,435)	44,111	(31,530)
Balance, end of period	(10,440)	(2,005)	(46,116)
Pension and postretirement benefit plans
AOCI Attributable to Parent, Net of Tax
Balance, beginning of period	(194,513)	(429,712)	(481,550)
Other comprehensive loss, before reclassifications	(100,154)	251,790	2,193
Income tax (expense) benefit	23,516	(59,120)	(515)
Total other comprehensive income before reclassifications, net of tax	(76,638)	192,670	1,678
Reclassifications	26,050	55,579	65,552
Income tax benefit (expense)	(6,117)	(13,050)	(15,392)
Total reclassification from other comprehensive income, net of tax	19,933	42,529	50,160
Other comprehensive loss	(56,705)	235,199	51,838
Balance, end of period	(251,218)	(194,513)	(429,712)
Pension and postretirement benefit plans; Prior service credits
AOCI Attributable to Parent, Net of Tax
Reclassifications	(3,635)	(3,570)	(3,469)
Pension and postretirement benefit plans; Actuarial losses
AOCI Attributable to Parent, Net of Tax
Reclassifications	32,400	68,989	65,981
Pension and postretirement benefit plans; Curtailment and settlement losses
AOCI Attributable to Parent, Net of Tax
Reclassifications	$ (2,715)	$ (9,840)	$ 3,040

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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