FAIR VALUE MEASUREMENTS (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
FAIR VALUE MEASUREMENTS
Derivative Assets	$ 0.0	$ 0.0
Derivative Liabilities	0.0	0.0
Aggregate carrying value of total debt	1,968.2	1,931.8
Estimated fair value of total debt	$ 2,174.2	$ 2,037.6

Amount of short-term and long-term debt and lease obligation.

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Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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