Income Taxes - Deferred Tax Assets And Deferred Tax Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets:
Accounts receivable	$ 16,550	$ 14,384
Inventories	38,388	44,597
Employee benefits	54,865	39,526
Accrued expenses and other	73,983	103,892
Deductible state tax and interest benefit	7,206	4,042
Intangibles	135,777	152,499
Lease liabilities	106,753	91,359
Federal, foreign and state net operating losses and credits	408,434	433,822
Gross deferred tax assets	841,956	884,121
Valuation allowance	(236,357)	(267,838)
Net deferred tax assets	605,599	616,283
Deferred tax liabilities:
Inventories	(23,484)	(17,403)
Plant and equipment	(467,451)	(489,240)
Intangibles	(188,417)	(197,009)
Right of use assets	(101,935)	(87,351)
Prepaids	(45,077)	(56,140)
Other liabilities	(67,914)	(46,121)
Gross deferred tax liabilities	(894,278)	(893,264)
Net deferred tax liability	$ (288,679)	$ (276,981)