Pension and Postretirement Benefits (Summary of Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Pension Benefits
Change in benefit obligation:
Benefit obligation at beginning of year	$ 77.6	$ 67.7
Service cost	2.0	1.9	$ 2.1
Interest cost	1.9	2.1	0.9
Plan participants’ contributions	0.4	0.4
Actuarial (gain) loss	(1.0)	7.4
Settlements	(2.3)	(3.7)
Benefits paid	(5.5)	(4.1)
Foreign currency exchange and other	(3.9)	6.0
Administrative expenses paid	(0.1)	(0.1)
Benefit obligation at end of year	69.1	77.6	67.7
Change in plan assets:
Fair value of plan assets at beginning of year	83.5	79.2
Actual return on plan assets	3.8	4.8
Employer contributions	1.6	1.8
Plan participants’ contributions	0.4	0.4
Settlements	(2.3)	(3.7)
Benefits paid	(5.5)	(4.1)
Foreign currency exchange and other	(4.2)	5.5
Administrative expenses paid	(0.8)	(0.4)
Fair value of plan assets at end of year	76.5	83.5	79.2
Funded status	7.4	5.9
Postretirement Benefits
Change in benefit obligation:
Benefit obligation at beginning of year	12.7	16.3
Service cost	0.1	0.1	0.1
Interest cost	0.6	0.8	0.6
Plan participants’ contributions	0.0	0.0
Actuarial (gain) loss	(0.4)	(2.9)
Settlements	0.0	0.0
Benefits paid	(1.5)	(1.6)
Foreign currency exchange and other	0.0	0.0
Administrative expenses paid	0.0	0.0
Benefit obligation at end of year	11.5	12.7	16.3
Change in plan assets:
Fair value of plan assets at beginning of year	0.0	0.0
Actual return on plan assets	0.0	0.0
Employer contributions	1.5	1.6
Plan participants’ contributions	0.0	0.0
Settlements	0.0	0.0
Benefits paid	(1.5)	(1.6)
Foreign currency exchange and other	0.0	0.0
Administrative expenses paid	0.0	0.0
Fair value of plan assets at end of year	0.0	0.0	$ 0.0
Funded status	$ (11.5)	$ (12.7)