Employee Benefits (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Domestic Pension Plan
Defined Pension and Postretirement Benefit Plans
Service cost	$ 0.0	$ 0.0
Interest cost	1.3	1.5
Expected return on plan assets	(1.6)	(1.7)
Amortization of:
Prior service credit	0.0	0.0
Unrecognized actuarial losses	0.4	1.9
Net periodic cost	0.1	1.7
Pension plan - estimated employer contributions for remainder of current fiscal year	1.0
Foreign Pension Plans
Defined Pension and Postretirement Benefit Plans
Service cost	0.9	2.7
Interest cost	3.3	4.5
Expected return on plan assets	(4.3)	(5.3)
Amortization of:
Prior service credit	0.0	0.0
Unrecognized actuarial losses	1.3	0.9
Net periodic cost	1.2	2.8
Pension plan - employer contributions	4.4
Pension plan - estimated employer contributions for remainder of current fiscal year	13.0
Domestic Postretirement Benefit Plan
Defined Pension and Postretirement Benefit Plans
Service cost	0.0	0.0
Interest cost	0.3	0.4
Expected return on plan assets	0.0	0.0
Amortization of:
Prior service credit	0.0	(0.1)
Unrecognized actuarial losses	0.0	0.0
Net periodic cost	$ 0.3	$ 0.3