Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUE MEASUREMENTS (Fair Value Measured On A Non-Recurring Basis) (Details)

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FAIR VALUE MEASUREMENTS (Fair Value Measured On A Non-Recurring Basis) (Details) - USD ($)
 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Impairment charge, definite-lived intangible assets $ 15,264,000 $ 19,372,000
Fair Value, Nonrecurring [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Definite-lived intangible assets, net 7,390,000 0
Fair Value, Nonrecurring [Member] | Level 1 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Definite-lived intangible assets, net 0 0
Fair Value, Nonrecurring [Member] | Level 2 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Definite-lived intangible assets, net 0 0
Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Definite-lived intangible assets, net $ 7,390,000 $ 0