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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%

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