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LEASES - Schedule of Maturities of Operating Lease Liabilities (Details)
$ in Millions
Sep. 30, 2019
USD ($)
Leases [Abstract]  
2019 $ 0.0
2020 13.3
2021 18.3
2022 13.5
2023 12.0
2024 and thereafter 31.3
Total lease payments 88.4
Less imputed interest (11.4)
Total operating lease liabilities $ 77.0