FAIR VALUE MEASUREMENTS - SCHEDULE OF IMPAIRMENT CHARGES (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment charge on reclassified assets	$ 6,200	$ 2,725
Long-lived and intangible asset impairment charges	9,143	112,485	$ 57,729
Customer relationship and trademark
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-lived and intangible asset impairment charges		100,131
Other long-lived assets, not held for sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-lived and intangible asset impairment charges		$ 9,629
Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-lived and intangible asset impairment charges	$ 2,943