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REVENUE Revenue Textuals (Details)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2018
USD ($)
Sep. 30, 2018
USD ($)
Net Contract Liability, Change from Prior Year   $ (22.5)
Net Contract Liability, Percentage Change from Prior Period   121.60%
Capitalized Contract Cost, Net $ 7.0 $ 7.0
Contract with Customer, Liability, Revenue Recognized 12.4 58.5
Capitalized Contract Cost, Amortization 0.2 0.6
Long-term Contract with Customer [Member]    
Revenue, Remaining Performance Obligation, Amount 38.8 38.8
Long-term Contract with Customer [Member] | Minimum [Member]    
Revenue, Remaining Performance Obligation, Amount 8.0 8.0
Long-term Contract with Customer [Member] | Maximum [Member]    
Revenue, Remaining Performance Obligation, Amount $ 12.0 $ 12.0
Revenue on Service and Repair Contracts [Member]    
Revenue from Contract with Customer, Excluding Assessed Tax   3.00%