INVESTMENT IN HOTEL PROPERTIES - Schedule of intangible assets and liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Intangible assets:
Intangible assets, gross	$ 22,764	$ 6,602
Less accumulated amortization	(1,001)	(348)
Intangible assets, net	21,763	6,254
Intangible liabilities:
Unfavorable leases	5,002	5,002
Less accumulated amortization	(285)	(190)
Intangible liabilities, net	4,717	4,812
Favorable leases
Intangible assets:
Intangible assets, gross	10,569	6,032
In-place lease agreements
Intangible assets:
Intangible assets, gross	1,361	570
Air rights
Intangible assets:
Intangible assets, gross	10,754	0
Other
Intangible assets:
Intangible assets, gross	$ 80	$ 0