Retirement Plans (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Projected benefit obligation
Settlement due to divestiture		$ 5.6
Fair value of plan assets
End of year	173.5	209.6
Settlement cost		5.6
Defined Benefit Plans
Retirement Plans
Unrecognized actuarial losses, before tax	44.3
Unrecognized actuarial losses, net of tax	27.6
Unrecognized prior service cost, before tax	1.0
Unrecognized prior service cost, net of tax	0.6
Prior service cost included in accumulated other comprehensive income and expected to be recognized in net periodic pension costs	0.2
Prior service cost included in Accumulated other comprehensive income and expected to be recognized in net periodic pension costs, net of tax	0.1
Actuarial loss included in accumulated other comprehensive income and expected to be recognized in net periodic pension costs	3.7
Actuarial loss included in accumulated other comprehensive income and expected to be recognized in net periodic pension costs, net of tax	2.3
Projected benefit obligation
Beginning of year	207.3	214.8
Service cost	5.1	4.7	5.2
Interest cost	8.1	9.8	10.7
Actuarial (gain)/loss	(5.6)	6.5
Settlement due to divestiture	(18.6)	5.6
Benefits paid	(16.6)	(28.5)
End of year	179.7	207.3	214.8
Fair value of plan assets
Beginning of year	209.6	211.7
Actual return on plan assets	(0.8)	21.2
Company contributions	1.3	5.2
Foreign currency	(0.2)		(0.1)
Benefits paid	(16.6)	(28.5)
Sub Total	193.3	209.6
Due to AIP (estimate)	(19.8)
End of year	173.5	209.6	211.7
(Unfunded) funded status end of year	(6.2)	2.3
Accumulated benefit obligation at end of year	175.0	202.3
Amount in pension liabilities settled to AIP	18.6
Settlement cost	(18.6)	5.6
Post-retirement Welfare Plans
Retirement Plans
Unrecognized actuarial losses, before tax	0.2
Unrecognized actuarial losses, net of tax	0.1
Unrecognized prior service cost, before tax	0.3
Unrecognized prior service cost, net of tax	0.2
Prior service cost included in accumulated other comprehensive income and expected to be recognized in net periodic pension costs	0.1
Prior service cost included in Accumulated other comprehensive income and expected to be recognized in net periodic pension costs, net of tax	0.1
Actuarial loss included in accumulated other comprehensive income and expected to be recognized in net periodic pension costs	0.1
Actuarial loss included in accumulated other comprehensive income and expected to be recognized in net periodic pension costs, net of tax	0.1
Projected benefit obligation
Beginning of year	4.5	4.0	3.9
Interest cost	0.2	0.2	0.2
Participant contributions		0.1	0.2
Actuarial (gain)/loss	(0.9)	0.7	0.1
Settlement due to divestiture	1.2
Benefits paid	(0.1)	(0.5)	(0.4)
End of year	2.5	4.5	4.0
Fair value of plan assets
Benefits paid	(0.1)	(0.5)	(0.4)
Amount in pension liabilities settled to AIP	1.2
Settlement cost	1.2
Previously unrecognized actuarial loss in Accumulated Other Comprehensive Income recognized into earnings due to the settlement of the liability	0.3
Executive supplemental and director defined benefit pension plans
Projected benefit obligation
End of year	17.7
Fair value of plan assets
Company contributions	1.0
End of year	$ 0