Employee Benefit Plans - Schedule of Net Periodic Benefit Cost (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Pension benefit
Components of net periodic benefit cost
Service cost	$ 2.6	$ 2.8	$ 5.2	$ 5.7
Interest cost	4.2	4.1	8.5	8.2
Expected return on plan assets	(5.1)	(4.9)	(10.3)	(9.9)
Amortization of prior service cost (benefit)	0.6	0.6	1.1	1.1
Amortization of net actuarial loss (gain)	0.2	1.4	(0.4)	2.6
Expenses paid	0.8	0.8	1.6	1.6
Net periodic benefit cost	3.3	4.8	6.5	9.3
Other post-employment benefit
Components of net periodic benefit cost
Service cost	0.5	0.6	1.1	1.1
Interest cost	0.4	0.3	0.7	0.6
Amortization of prior service cost (benefit)	(0.4)	(0.4)	(0.7)	(0.7)
Amortization of net actuarial loss (gain)	0.1	0.1	0.2	0.1
Net periodic benefit cost	$ 0.6	$ 0.6	$ 1.3	$ 1.1