Income Taxes - Deferred Income Tax Assets and Liabilities Recorded on Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets:
Accrued employee benefits	$ 31,917	$ 20,060
Operating loss carryovers	1,316,916	1,157,841
Pensions	23,527	26,229
Inventory reserves	83,136	3,600
Tax credit carryovers	1,431	3,750
Other	103,517	118,733
Gross deferred tax assets	1,560,444	1,330,213
Valuation allowance	(1,349,924)	(1,087,505)	$ (1,276,305)	$ (1,326,204)
Deferred tax assets	210,520	242,708
Deferred tax liabilities:
Depreciation	(541,245)	(446,942)
Intangibles	(54,413)	(84,690)
Other	(150,859)	(145,412)
Deferred tax liabilities	(746,517)	(677,044)
Deferred Tax Liabilities, Net	(535,997)	(434,336)
Noncurrent deferred tax assets	22,433	46,434
Noncurrent deferred tax liabilities	(558,430)	(480,770)
Deferred Tax Liabilities, Net	$ 535,997	$ 434,336