INVESTMENT IN HOTEL PROPERTIES, NET - Narrative (Details) $ in Millions		3 Months Ended	6 Months Ended	12 Months Ended
	May 01, 2021 USD ($) Room hotel	Jun. 30, 2021 USD ($) Room hotel	Jun. 30, 2021 USD ($) Room hotel	Dec. 31, 2020 USD ($)
Financing Receivable, Allowance for Credit Loss [Line Items]
Consideration for hotel property portfolio activity	$ 172.0
Adjustment to additional paid-in capital, contribution by non-controlling interest in joint venture	16.4
Transaction costs, transfer taxes		$ 1.8
Transaction costs, legal costs		0.3
GIC
Financing Receivable, Allowance for Credit Loss [Line Items]
Cash contribution to acquire interest in joint venture	$ 84.3
Transaction costs, transfer taxes		$ 0.9
Hotels
Financing Receivable, Allowance for Credit Loss [Line Items]
Number of hotel properties | hotel		72	72
Number of guestrooms | Room		11,288	11,288
Hotels | Six hotels contributed in 2021 into joint venture
Financing Receivable, Allowance for Credit Loss [Line Items]
Number of hotel properties | hotel	6
Number of guestrooms | Room	846
Limited partner, ownership percentage	49.00%
Mezzanine loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans amount			$ 28.9	$ 28.9