SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Property and Equipment (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Property and Equipment
Gross property and equipment	$ 881,402	$ 870,109
Less accumulated depreciation and amortization	(303,607)	(292,059)
Property and equipment, net	577,795	578,050
Land
Property and Equipment
Gross property and equipment	32,977	32,977
Land improvements
Property and Equipment
Gross property and equipment	10,939	10,939
Buildings
Property and Equipment
Gross property and equipment	473,672	475,956
Building improvements
Property and Equipment
Gross property and equipment	76,421	75,858
Furniture
Property and Equipment
Gross property and equipment	242,726	249,045
Construction in progress
Property and Equipment
Gross property and equipment	26,883	7,229
Right of use assets
Property and Equipment
Gross property and equipment	13,539	13,861
Leasehold improvements
Property and Equipment
Gross property and equipment	$ 4,245	$ 4,244