Post Employment Plans - Fair Value of Pension Plan Assets (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	$ 181.7	$ 189.1
Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	1.1	1.2
Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	117.3	123.7
Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	63.3	64.2	$ 56.1
Equities
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	41.3	42.8
Equities | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0.1	0.0
Equities | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	41.2	42.8
Equities | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0.0	0.0
Bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	43.5	44.2
Bonds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	1.0	1.2
Bonds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	42.5	43.0
Bonds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0.0	0.0
Absolute return fund
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	23.7	30.8
Absolute return fund | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0.0	0.0
Absolute return fund | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	23.7	30.8
Absolute return fund | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0.0	0.0
Insurance contracts
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	63.3	64.2
Insurance contracts | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0.0	0.0
Insurance contracts | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0.0	0.0
Insurance contracts | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	63.3	64.2
Other
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	9.9	7.1
Other | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0.0	0.0
Other | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	9.9	7.1
Other | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	$ 0.0	$ 0.0