Supplemental Consolidated Cash and Cash Flow Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2021
Supplemental Cash Flow Elements [Abstract]
Cash	$ 26.6		$ 42.2
Restricted cash	0.8		0.6
Total cash and restricted cash reported in the Consolidated Balance Sheets	27.4	$ 49.1	$ 42.8	$ 133.7
Interest	1.2	0.6
Income taxes	$ 0.1	$ (0.3)