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Leases Supplemental Cash Flow Information Related to Leases (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash Paid For Amounts Included In Measurement Of Lease Liabilities
Operating cash flows related to operating leases	$ 15.9	$ 17.5	$ 18.2
Operating cash flows related to finance leases	0.1	0.3	0.6
Financing cash flows related to finance leases	1.9	3.9	5.6
Right-Of-Use Assets Obtained In Exchange For Lease Obligations
Operating leases	1.4	4.0	6.7
Finance leases	$ 0.0	$ 0.0	$ 3.7

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Amount of interest paid on finance lease liability.

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Amount of cash outflow for principal payment on finance lease.

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