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LEASES - Schedule of Maturities of Operating Lease Liabilities (Details)
$ in Millions
Mar. 31, 2019
USD ($)
Leases [Abstract]  
2019 $ 8.9
2020 11.2
2021 16.1
2022 12.1
2023 11.0
2024 and thereafter 29.1
Total lease payments 88.4
Less imputed interest (11.8)
Total operating lease liabilities $ 76.6