v3.10.0.1
INCOME TAXES - Income tax provision (Details)
kr in Millions, $ in Millions
3 Months Ended 9 Months Ended 12 Months Ended
Jan. 01, 2018
Sep. 30, 2018
USD ($)
Sep. 30, 2017
USD ($)
Sep. 30, 2018
USD ($)
Sep. 30, 2017
USD ($)
Dec. 31, 2017
SEK (kr)
Effect of Tax Cuts and Jobs Act of 2017            
Enacted federal income tax rate 21.00%         35.00%
Income tax expense related to undistributed foreign earnings | kr           kr 0.0
Deferred:            
Deferred income taxes       $ (3.5) $ (137.9)  
Income tax provision (benefit)   $ 11.1 $ (17.6) $ 13.2 $ (136.4)