Property, Plant, and Equipment and Impairment of Long-Lived Assets - Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Abstract]
Land	$ 188,096	$ 188,096
Buildings and equipment	974,305	937,926
Other	21,477	20,961
Total property, plant, and equipment	1,183,878	1,146,983
Less accumulated depreciation, depletion, and amortization	(251,113)	(185,040)
Property, plant, and equipment, net	$ 932,765	$ 961,943