FAIR VALUE MEASUREMENTS (Recurring Level 3 Fair Value Measurements Unobservable) (Details) - Fair Value, Inputs, Level 3	Dec. 31, 2019
Discount rate | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Embedded derivative in lease agreement	0.1093
Discount rate | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Embedded derivative in lease agreement	0.1396
Revenue growth | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Redeemable noncontrolling interests	0.0382
Revenue growth | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Redeemable noncontrolling interests	0.0788
Long-term growth rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Embedded derivative in lease agreement	0.0400