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INCOME TAXES (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
INCOME TAXES        
Effective tax rate (as a percent) (15.60%) 16.20% 25.40% 41.50%
Benefit from the reversal of unrecognized tax positions due to statute expiration $ 1.1   $ 0.6  
Income tax benefit from reversal of deferred tax liability due to intercompany debt restructure $ 0.5   $ 0.5  
Benefit for the release of a capital loss valuation allowance   $ 0.5   $ 0.5
Interest expense on unrecognized tax benefits       0.5
Provision for the intercompany sale of assets       $ 0.7