DETAILS OF SELECTED BALANCE SHEET ACCOUNTS - Property, Plant and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
	Jun. 30, 2020	Sep. 30, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Total property, plant and equipment		$ 1,823,745	$ 1,854,635
Accumulated depreciation		(1,342,351)	(1,264,326)
Total property, plant and equipment, net		481,394	590,309
Reclassification to property, plant, and equipment	$ 6,600
Land
Property, Plant and Equipment [Line Items]
Total property, plant and equipment		47,049	43,147
Accommodations assets
Property, Plant and Equipment [Line Items]
Total property, plant and equipment		$ 1,651,178	$ 1,696,425
Accommodations assets | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)		3 years	3 years
Accommodations assets | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)		15 years	15 years
Buildings and leasehold improvements
Property, Plant and Equipment [Line Items]
Total property, plant and equipment		$ 33,714	$ 26,108
Buildings and leasehold improvements | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)		7 years	7 years
Buildings and leasehold improvements | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)		20 years	20 years
Machinery and equipment
Property, Plant and Equipment [Line Items]
Total property, plant and equipment		$ 12,110	$ 12,060
Machinery and equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)		4 years	4 years
Machinery and equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)		15 years	15 years
Office furniture and equipment
Property, Plant and Equipment [Line Items]
Total property, plant and equipment		$ 59,432	$ 58,005
Office furniture and equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)		3 years	3 years
Office furniture and equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)		7 years	7 years
Vehicles
Property, Plant and Equipment [Line Items]
Total property, plant and equipment		$ 14,711	$ 14,604
Vehicles | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)		3 years	3 years
Vehicles | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)		5 years	5 years
Construction in progress
Property, Plant and Equipment [Line Items]
Total property, plant and equipment		$ 5,551	$ 4,286