Retirement Plans - Schedule of Changes in Projected Benefit Obligation and Plan Assets, and Net Funded Status (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
United States
Change in benefit obligation
Benefit obligation, beginning of year	$ 72.8	$ 78.8
Service cost	0.0	0.0
Interest cost	2.9	3.0
Actuarial (gain) loss	1.1	(0.8)
Benefits paid	(2.3)	(2.2)
Settlement payments	(9.6)	(6.0)
Curtailments	0.0	0.0
Foreign exchange rate changes	0.0	0.0
Projected benefit obligation, end of year	64.9	72.8
Change in plan assets
Fair value of plan assets, beginning of year	59.1	67.5
Actual return on plan assets	2.5	(0.8)
Foreign exchange rate changes	0.0	0.0
Company contributions	0.1	0.6
Benefits paid	(2.3)	(2.2)
Settlement payments	(9.6)	(6.0)
Fair value of plan assets, end of year	49.8	59.1
Defined Benefit Plan, Funded Status of Plan [Abstract]
Funded status of the plan, end of year	(15.1)	(13.7)
International
Change in benefit obligation
Benefit obligation, beginning of year	22.8	33.2
Service cost	0.0	0.2
Interest cost	0.6	0.5
Actuarial (gain) loss	2.5	(2.7)
Benefits paid	(0.9)	(4.9)
Settlement payments	0.0	0.0
Curtailments	0.0	(0.6)
Foreign exchange rate changes	(0.9)	(2.9)
Projected benefit obligation, end of year	24.1	22.8
Change in plan assets
Fair value of plan assets, beginning of year	18.6	23.6
Actual return on plan assets	0.7	1.1
Foreign exchange rate changes	(0.5)	(1.8)
Company contributions	(2.7)	0.6
Benefits paid	(0.9)	(4.9)
Settlement payments		0.0
Fair value of plan assets, end of year	15.2	18.6
Defined Benefit Plan, Funded Status of Plan [Abstract]
Funded status of the plan, end of year	$ (8.9)	$ (4.2)