Schedule 2 - Parent Company Financial Statements - Future Minimum Lease Payments (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Condensed Financial Statements, Captions [Line Items]
Due Next 12 Months	$ 20.4
Due Year Two	15.5
Due Year Three	9.4
Due Year Four	7.2
Due Year Five	4.4
Due after Year Five	15.2
Total Future Payments	72.1
Imputed Interest	9.8
Operating Lease, Liability	62.3	$ 72.6
Parent Company
Condensed Financial Statements, Captions [Line Items]
Due Next 12 Months	2.9
Due Year Two	2.6
Due Year Three	2.6
Due Year Four	2.7
Due Year Five	2.8
Due after Year Five	14.8
Total Future Payments	28.4
Imputed Interest	5.1
Operating Lease, Liability	$ 23.3	$ 24.4