Employee Benefits (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Defined Pension and Postretirement Benefit Plans
Document Period End Date			Jun. 30, 2019
Domestic Plan [Member]
Defined Pension and Postretirement Benefit Plans
Service cost	$ 0.0	$ 0.0	$ 0.0	$ 0.0
Interest cost	1.2	1.1	2.4	2.2
Expected return on plan assets	(1.4)	(1.5)	(2.9)	(3.3)
Settlement and curtailments			(0.0)	(0.0)
Amortization of:
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	0.0	0.0	0.0	0.0
Unrecognized actuarial losses	0.4	0.4	0.9	0.8
Net periodic cost	0.2	0.0	0.4	(0.3)
Pension plan - employer contributions			1.1
Pension plan - estimated employer contributions for remainder of current fiscal year	1.0		1.0
Foreign Plan [Member]
Defined Pension and Postretirement Benefit Plans
Service cost	1.1	0.9	2.3	2.0
Interest cost	3.1	3.4	6.3	6.8
Expected return on plan assets	(4.4)	(4.8)	(8.8)	(9.7)
Settlement and curtailments			(0.0)	0.2
Amortization of:
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	0.1	0.1	0.1	0.1
Unrecognized actuarial losses	1.2	1.5	2.4	3.0
Net periodic cost	1.1	1.1	2.3	2.4
Pension plan - employer contributions			8.7
Pension plan - estimated employer contributions for remainder of current fiscal year	8.0		8.0
Domestic Postretirement Benefit Plan
Defined Pension and Postretirement Benefit Plans
Service cost	0.0	0.0	0.0	0.0
Interest cost	0.3	0.2	0.6	0.5
Expected return on plan assets	(0.0)	(0.0)	(0.0)	(0.0)
Settlement and curtailments			(0.0)	(0.0)
Amortization of:
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	(0.1)	(0.1)	(0.1)	(0.1)
Unrecognized actuarial losses	(0.0)	0.1	(0.0)	0.1
Net periodic cost	$ 0.2	$ 0.2	$ 0.5	$ 0.5