Retirement and Other Postretirement Benefit Plans - Schedule of Amounts Recognized on Balance Sheet (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Amounts recognized on the balance sheet:
Other non-current liabilities	$ 44.3		$ 42.6
Defined Benefit Retirement Plans | U.S.
Amounts recognized on the balance sheet:
Accrued liabilities	1.2		1.3
Other non-current liabilities	16.8		16.8
Total accrued benefit	$ 18.0		$ 18.1
Defined Benefit Plan, Tax Status [Extensible List]	Non qualified	Non qualified	Non qualified
Defined Benefit Retirement Plans | European
Amounts recognized on the balance sheet:
Accrued liabilities	$ 1.1		$ 0.8
Other non-current liabilities	12.8		12.3
Total accrued benefit	13.9		13.1
Postretirement Health Care and Life Insurance Benefit Plans
Amounts recognized on the balance sheet:
Accrued liabilities	0.2		0.2
Other non-current liabilities	0.9		0.9
Total accrued benefit	$ 1.1		$ 1.1