Pension and Other Postretirement Benefits (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Pension Benefits [Member] | U.S. Plans [Member]
Net Periodic Benefit Cost [Abstract]
Service cost	$ 0.0	$ 0.0	$ 0.0	$ 0.0
Interest cost	0.5	0.6	1.0	1.1
Expected return on plan assets	(1.2)	(1.1)	(2.3)	(2.2)
Recognition of [Abstract]
Unrecognized prior service cost	0.0	0.0	0.0	0.0
Unrecognized net actuarial loss	0.0	0.0	0.0	0.0
Net periodic benefit cost	(0.7)	(0.5)	(1.3)	(1.1)
Pension Benefits [Member] | Non-U.S. Plans [Member]
Net Periodic Benefit Cost [Abstract]
Service cost	0.4	0.5	0.9	0.9
Interest cost	1.9	1.9	3.8	3.8
Expected return on plan assets	(2.9)	(2.6)	(5.9)	(5.1)
Recognition of [Abstract]
Unrecognized prior service cost	0.0	0.0	0.0	0.0
Unrecognized net actuarial loss	0.5	1.2	1.0	2.4
Net periodic benefit cost	(0.1)	1.0	(0.2)	2.0
Other Postretirement Benefits [Member]
Net Periodic Benefit Cost [Abstract]
Service cost	0.0	0.0	0.0	0.0
Interest cost	0.0	0.0	0.1	0.1
Expected return on plan assets	0.0	0.0	0.0	0.0
Recognition of [Abstract]
Unrecognized prior service cost	0.0	0.0	0.0	0.0
Unrecognized net actuarial loss	0.0	0.0	0.0	0.0
Net periodic benefit cost	$ 0.0	$ 0.0	$ 0.1	$ 0.1