Annual report pursuant to Section 13 and 15(d)

BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES (Transaction Gains (Losses) Resulting from Remeasurement) (Details)

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BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES (Transaction Gains (Losses) Resulting from Remeasurement) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Foreign Currency Transaction Gain (Loss), before Tax $ (0.2) $ (2.7) $ (1.2)
Transaction Gains and Losses Resulting from Remeasurement [Member]      
Foreign Currency Transaction Gain (Loss), before Tax (0.9) 13.9 (17.8)
Intercompany loan [Member]      
Foreign Currency Transaction Gain (Loss), before Tax $ (0.7) $ 16.6 $ (16.6)