Property and Equipment Used in Operations (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 124,345	$ 177,114
Less accumulated depreciation	(84,260)	(96,496)
Property and equipment, net	40,085	80,618
Land and improvements
Property, Plant and Equipment [Line Items]
Total property and equipment	7,320	30,540
Building and improvements
Property, Plant and Equipment [Line Items]
Total property and equipment	86,110	117,333
Furniture, fixtures, and equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	28,832	28,767
Construction in progress
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 2,083	$ 474