Lease Arrangements - Lease Costs (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Finance lease expense
Amortization of right-of-use assets	$ 3.2	$ 1.4	$ 1.7
Interest on lease liabilities	0.3	0.3	0.1
Operating lease expense	15.2	14.7	14.4
Other lease expense	6.6	7.9	6.4
Total lease expense	$ 25.3	$ 24.3	$ 22.6