Pension Benefit Plans (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Retirement Benefits [Abstract]
Service cost	$ 1.1	$ 1.5	$ 2.1	$ 3.1
Interest cost	1.5	1.5	3.0	3.1
Expected return on plan assets	(2.3)	(2.7)	(4.6)	(5.5)
Amortization of prior service cost	0.0	0.1	0.0	0.1
Recognized actuarial loss	1.3	2.1	2.9	4.2
Other	0.0	0.0	(0.1)	(0.3)
Settlements and curtailments	0.2	0.0	0.3	0.7
Net periodic benefit cost	$ 1.8	$ 2.5	$ 3.6	$ 5.4