COMMITMENTS AND CONTINGENCIES - Franchise and Management Agreements (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Franchise agreements
Commitments and contingencies
Fees related to the agreement	$ 4.1	$ 9.5
Management Agreements
Commitments and contingencies
Fees related to the agreement	$ 1.6	$ 3.1
Management Agreements | Maximum
Commitments and contingencies
Term of contract	5 years