GOODWILL AND OTHER 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, 2020	Dec. 31, 2019
Cost	$ 629,800	$ 629,800
Accumulated Amortization and Impairment	(26,480)	(13,163)
Net Balance	603,320	616,637
Retail Concession Agreements [Member]
Cost	604,700	604,700
Accumulated Amortization and Impairment	(23,801)	(12,165)
Net Balance	$ 580,899	$ 592,535
Amortization Period (in years)	39 years	39 years
Destination Resort Agreements [Member]
Cost	$ 17,900	$ 17,900
Accumulated Amortization and Impairment	(1,798)	(907)
Net Balance	$ 16,102	$ 16,993
Amortization Period (in years)	15 years	15 years
Licensing Agreements [Member]
Cost	$ 1,000	$ 1,000
Accumulated Amortization and Impairment	(181)	(91)
Net Balance	$ 819	$ 909
Amortization Period (in years)	8 years	8 years
Trade Names [Member]
Cost	$ 6,200	$ 6,200
Accumulated Amortization and Impairment	(700)
Net Balance	$ 5,500	$ 6,200
Amortization Period (in years)	Indefinite-life	Indefinite-life