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COMMITMENTS, CONTINGENCIES AND OTHER MATTERS (Tables) | 12 Months Ended
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Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract] |
Future Minimum Annual Lease Payments for Capital Leases and Related and Third-Party Operating Leases | At December 31, 2018, the future minimum annual lease payments for capital and third-party operating leases were as follows (in millions):
| Capital Leases |  | Operating Leases |  | Total
2019 | $ | 0.1 |  |  | $ | 14.0 |  |  | $ | 14.1 |
2020 | 0.0 |  |  | 12.3 |  |  | 12.3 |
2021 | 0.0 |  |  | 9.2 |  |  | 9.2 |
2022 | 0.0 |  |  | 8.2 |  |  | 8.2 |
2023 | 0.0 |  |  | 8.0 |  |  | 8.0 |
2024-2028 | 0.0 |  |  | 23.4 |  |  | 23.4 |
2029-2032 | 0.0 |  |  | 9.3 |  |  | 9.3 |
Total minimum lease payments | 0.1 |  |  | 84.4 |  |  | 84.5 |

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- Definition Tabular disclosure of future minimum annual lease payments for capital leases and related and third-party operating leases. + References No definition available. + Details
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