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Leases Leases Maturities of Lease Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Leases [Abstract]
Operating Leases, Future Minimum Payments, Due in Three Years		$ 11.9
2020	$ 25.4
2021	18.4
2022	12.6
2023	10.7
2024	8.1
Thereafter	17.2
Total lease payments	92.4
Less imputed interest	19.5
Total operating lease liabilities	$ 72.9

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Amount of lessee's undiscounted obligation for lease payments for operating lease.

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