COMMITMENTS, CONTINGENCIES AND OTHER MATTERS - Future Minimum Annual Lease Payments (Details) $ in Millions	Dec. 31, 2018 USD ($)
Capital Leases
2019	$ 0.1
2020	0.0
2021	0.0
2022	0.0
2023	0.0
2024-2028	0.0
2029-2032	0.0
Capital lease, total minimum lease payments	0.1
Operating Leases
2019	14.0
2020	12.3
2021	9.2
2022	8.2
2023	8.0
2024-2028	23.4
2029-2032	9.3
Operating lease, total minimum lease payments	84.4
Total lease [Abstract]
2019	14.1
2020	12.3
2021	9.2
2022	8.2
2023	8.0
2024-2028	23.4
2029-2032	9.3
Total leases, total minimum lease payments	$ 84.5