Benefit Plans - Pension and Other Postretirement Benefit Liabilities in Consolidated Balance Sheets (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Total Pension and Other Postretirement Benefit Liabilities Included in Balance Sheets [Abstract]
Other assets	$ 18.5	$ 18.8
Accrued liabilities	(6.4)	(6.2)
Pension and other postretirement benefits	$ (132.6)	$ (144.6)