LEASES - Net Book Value of Operating Lease Property Included in Property and Equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Operating Leased Assets [Line Items]
Gross property and equipment leased	$ 113,008	$ 113,008
Accumulation depreciation	(15,382)	(14,345)
Net property and equipment leased	97,626	98,663
Land
Operating Leased Assets [Line Items]
Gross property and equipment leased	21,120	21,120
Site improvements
Operating Leased Assets [Line Items]
Gross property and equipment leased	91,308	91,308
Buildings
Operating Leased Assets [Line Items]
Gross property and equipment leased	$ 580	$ 580