Income Taxes (Schedule of Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets
Accrued expenses and allowances	$ 24,324	$ 22,912
Inventories	9,088	5,670
Net operating loss carryforwards	20,333	25,089
Other	8,776	7,077
Subtotal	62,521	60,748
Less: valuation allowance	(805)	(805)
Total net deferred tax assets	61,716	59,943
Deferred tax liabilities
Property, plant and equipment	(846,942)	(538,746)
Intangible Assets	(62,339)	(51,835)
Other	(7,340)	(5,650)
Total deferred tax liabilities	(916,621)	(596,231)
Net deferred tax liability	$ (854,905)	$ (536,288)