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REVENUES (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Jan. 01, 2018
Contract with Customer, Asset and Liability [Abstract] |  |  |
Contract with customer, assets | $ 5.0 | $ 6.2 | $ 6.4
Amounts invoiced in excess of revenue recognized | (1.7) | (0.9) |
Net additions, assets | 0.5 | 0.7 |
Contract with customer, asset, net, current | 1.3 | 1.7 | 0.9
Contract with customer, asset, net, noncurrent | 3.7 | 4.5 |
Contract with customer, liabilities | 57.1 | 31.7 | 33.3
Revenue recognized included in beginning balance | (15.6) | (19.5) |
Net additions, liabilities | 41.0 | 17.9 |
Contract with customer, liability, current | 22.2 | 15.6 | $ 19.5
Contract with customer, liability, noncurrent | 34.9 | $ 16.1 |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |  |  |
Revenue, Remaining Performance Obligation, Amount | $ 1,822.3 |  |
Revenue, Remaining Performance Obligation, Contract Term | 5 to 10 years |  |
2020 [Member] |  |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |  |  |
Revenue, Remaining Performance Obligation, Amount | $ 343.5 |  |
2021 [Member] |  |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |  |  |
Revenue, Remaining Performance Obligation, Amount | 290.4 |  |
2022 [Member] |  |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |  |  |
Revenue, Remaining Performance Obligation, Amount | 214.8 |  |
2023 [Member] |  |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |  |  |
Revenue, Remaining Performance Obligation, Amount | 166.4 |  |
Thereafter [Member] |  |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |  |  |
Revenue, Remaining Performance Obligation, Amount | $ 807.2 |  |
Remaining Contract Terms [Member] |  |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |  |  |
Revenue, Remaining Performance Obligation, Contract Term | one month to 24 years |  |

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