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NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
6 Months Ended
Jun. 30, 2020
NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES  
Summary of changes in the fair value of the liabilities

Six Months Ended

June 30, 

    

2020

    

2019

Balance at beginning of period

$

21.5

$

21.9

Change in fair value

(0.3)

(0.4)

Balance at end of period

$

21.2

$

21.5