Retirement and Other Postretirement Benefit Plans - Schedule of Pension Assets Measured at Fair Value (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Fair value measurements	$ 4.6	$ 122.1
Insurance contracts
Defined Benefit Plan Disclosure [Line Items]
Fair value measurements	2.4	112.9
Index Linked Gilts
Defined Benefit Plan Disclosure [Line Items]
Fair value measurements		0.8
Diversified Investment, Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value measurements	2.2	8.1
Cash and Cash Equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value measurements		0.3
Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value measurements		0.3
Level 1 | Cash and Cash Equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value measurements		0.3
Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value measurements		7.1
Level 2 | Index Linked Gilts
Defined Benefit Plan Disclosure [Line Items]
Fair value measurements		0.8
Level 2 | Diversified Investment, Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value measurements		6.3
Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value measurements	4.6	114.7	$ 220.3
Actual return on plan assets	(16.4)	(78.8)
Purchases, sales and settlements	(97.0)	(5.5)
Currency translation adjustments	3.3	(21.3)
Level 3 | Insurance contracts
Defined Benefit Plan Disclosure [Line Items]
Fair value measurements	2.4	112.9	218.0
Actual return on plan assets	(16.5)	(78.6)
Purchases, sales and settlements	(97.2)	(5.3)
Currency translation adjustments	3.2	(21.2)
Level 3 | Diversified Investment, Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value measurements	2.2	1.8	$ 2.3
Actual return on plan assets	0.1	(0.2)
Purchases, sales and settlements	0.2	(0.2)
Currency translation adjustments	$ 0.1	$ (0.1)