GOODWILL AND INTANGIBLE ASSETS - Summary of Cost, Accumulated Amortization, and Net Balance of the Definite-Lived Intangible Assets (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Cost	$ 629,800	$ 629,800
Accumulated Amortization and Impairment	(43,304)	(30,686)
Net Balance	586,496	599,114
Retail Concession Agreements [Member]
Cost	604,700	604,700
Accumulated Amortization and Impairment	(39,311)	(27,680)
Net Balance	$ 565,389	$ 577,020
Weighted Average Amortization Period (in years)	39 years	39 years
Destination Resort Agreements [Member]
Cost	$ 17,900	$ 17,900
Accumulated Amortization and Impairment	(2,989)	(2,095)
Net Balance	$ 14,911	$ 15,805
Weighted Average Amortization Period (in years)	15 years	15 years
Licensing Agreements [Member]
Cost	$ 1,000	$ 1,000
Accumulated Amortization and Impairment	(304)	(211)
Net Balance	$ 696	$ 789
Weighted Average Amortization Period (in years)	8 years	8 years
Trade Name [Member]
Cost	$ 6,200	$ 6,200
Accumulated Amortization and Impairment	(700)	(700)
Net Balance	$ 5,500	$ 5,500
Weighted Average Amortization Period (in years)	Indefinite-life	Indefinite-life