Property and Equipment Used in Operations (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 259,531	$ 266,282
Less accumulated depreciation	(170,212)	(172,202)
Property and equipment, net	89,319	94,080
Land and improvements
Property, Plant and Equipment [Line Items]
Total property and equipment	30,499	30,492
Building and improvements
Property, Plant and Equipment [Line Items]
Total property and equipment	117,187	116,904
Furniture, fixtures, and equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	111,626	118,766
Construction in progress
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 219	$ 120