PROPERTY AND EQUIPMENT - Fixed Assets Roll forward (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Dec. 01, 2020
Total Property and Equipment
Cost	$ 119,684	$ 119,456
Accumulated Depreciation	25,492	24,441
Carrying Value	94,192	95,015	$ 175
Land
Total Property and Equipment
Cost	21,120	21,120
Accumulated Depreciation	0	0
Carrying Value	21,120	21,120
Site improvements
Total Property and Equipment
Cost	91,308	91,308
Accumulated Depreciation	19,461	18,428
Carrying Value	71,847	72,880
Buildings
Total Property and Equipment
Cost	580	580
Accumulated Depreciation	68	65
Carrying Value	512	515
Leasehold improvements
Total Property and Equipment
Cost	296	296
Accumulated Depreciation	138	125
Carrying Value	158	171
Furniture and equipment
Total Property and Equipment
Cost	1,149	1,223
Accumulated Depreciation	1,003	1,074
Carrying Value	146	149
Computer hardware
Total Property and Equipment
Cost	5,231	4,929
Accumulated Depreciation	4,822	4,749
Carrying Value	$ 409	$ 180