Employee Benefits (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Defined Pension and Postretirement Benefit Plans
Settlement and curtailments	$ (1.2)	$ (0.0)	$ (1.2)	$ (0.0)
Domestic Plan [Member]
Defined Pension and Postretirement Benefit Plans
Service cost	0.0	0.0	0.0	0.0
Interest cost	0.7	0.9	2.2	2.8
Expected return on plan assets	(1.4)	(1.4)	(4.2)	(4.2)
Settlement and curtailments	1.2	0.0	1.2	0.0
Amortization of:
Prior Service Cost (Credit)	0.0	0.0	0.0	0.0
Unrecognized actuarial losses	0.5	0.4	1.3	1.2
Net periodic cost	1.0	(0.1)	0.5	(0.2)
Pension plan - employer contributions			2.0
Pension plan - estimated employer contributions for remainder of current fiscal year	0.0		0.0
Foreign Plan [Member]
Defined Pension and Postretirement Benefit Plans
Service cost	1.1	1.2	3.3	3.5
Interest cost	2.0	2.4	6.0	7.0
Expected return on plan assets	(5.2)	(4.7)	(15.7)	(14.0)
Settlement and curtailments	0.0	0.0	0.0	0.0
Amortization of:
Prior Service Cost (Credit)	0.0	0.0	0.1	0.1
Unrecognized actuarial losses	1.7	1.4	5.1	4.1
Net periodic cost	(0.4)	0.3	(1.2)	0.7
Pension plan - employer contributions			13.8
Pension plan - estimated employer contributions for remainder of current fiscal year	5.0		5.0
Domestic Postretirement Benefit Plan
Defined Pension and Postretirement Benefit Plans
Service cost	0.0	0.0	0.0	0.0
Interest cost	0.2	0.2	0.5	0.6
Expected return on plan assets	0.0	0.0	0.0	0.0
Settlement and curtailments	0.0	0.0	0.0	0.0
Amortization of:
Prior Service Cost (Credit)	0.0	(0.1)	0.0	(0.1)
Unrecognized actuarial losses	0.2	0.1	0.7	0.2
Net periodic cost	$ 0.4	$ 0.2	$ 1.2	$ 0.7