Property and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2020	Dec. 31, 2019
Property and Equipment
Total property and equipment	$ 1,783,574	$ 1,783,574	$ 1,787,407
Less accumulated depreciation	708,490	708,490	682,544
Total	1,075,084	1,075,084	1,104,863
Assets held for sale	200	200	4,600
Long-lived assets subject to impairment	42,900	42,900
Long-lived asset impairment	1,724	1,724
Buildings and improvements
Property and Equipment
Total property and equipment	1,208,887	1,208,887	1,196,502
Land
Property and Equipment
Total property and equipment	450,474	450,474	452,104
Fixtures and equipment
Property and Equipment
Total property and equipment	34,208	34,208	46,848
Idle Plant Assets [Member]
Property and Equipment
Total property and equipment	30,500	30,500	30,500
Construction in process
Property and Equipment
Total property and equipment	29,230	29,230	27,951
Capitalized internal use software
Property and Equipment
Total property and equipment	$ 30,275	$ 30,275	$ 33,502

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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