v3.20.1
BASIS OF PRESENTATION - Other Expense (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
BASIS OF PRESENTATION    
Derivative liability fair value adjustment for embedded conversion feature in the Convertible Notes due 2024 $ (0.5) $ 13.3
Derivative asset fair value adjustment for contingent call option related to the Class B common stock purchase and cancellation agreement 20.1 15.1
Credit losses related to contingent lease guarantees 5.3  
Loss on Pound sterling forward contract   0.3
Foreign currency transactions losses 2.0 0.5
Non-operating components of net periodic benefit cost   0.1
Fees related to modification of term loans   0.2
Other   0.3
Total other expense $ 26.9 $ 29.8