Retirement and Other Postretirement Benefit Plans (Details 2) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Retirement and Other Postretirement Benefit Plans
Total plan assets invested in active corporate bond funds (as a percent)	100.00%	100.00%
Curtailment gain			$ (5.7)
Net Periodic Pension Expense
Defined benefit retirement plans	7.3	5.4	(0.3)
Union sponsored multi-employer pension plan	1.6	1.2	0.9
Retirement savings plans-matching contributions	3.0	3.3	2.9
Retirement savings plans-profit sharing contributions	6.7	7.6	8.0
Net periodic expense	18.6	17.5	11.5
Net periodic benefit costs of defined benefit retirement plans
Curtailment gain			(5.7)
Net periodic benefit cost	7.3	5.4	(0.3)
Change in plan assets:
Fair value of plan assets - beginning of year	128.3
Fair value of plan assets - end of year	149.3	128.3
U.S. Non-qualified Defined Benefit Retirement Plans
Retirement and Other Postretirement Benefit Plans
Expected employer contribution in next fiscal year	23.8
Net Periodic Pension Expense
Defined benefit retirement plans	6.5	4.7	4.2
Net periodic benefit costs of defined benefit retirement plans
Service cost	1.7	1.3	1.5
Interest cost	0.8	1.1	1.1
Net amortization and deferral	4.0	2.3	1.6
Net periodic benefit cost	6.5	4.7	4.2
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income
Net loss (gain)	1.0	3.1
Amortization of actuarial losses	(3.9)	(2.2)
Amortization of prior service credit (cost)	(0.1)	(0.1)
Total recognized in other comprehensive income (pre-tax)	(3.0)	0.8
Estimated net actuarial loss to be recognized as a component of net periodic pension cost	2.4
Change in benefit obligation:
Benefit obligation - beginning of year	38.6	33.4
Service cost	1.7	1.3	1.5
Interest cost	0.8	1.1	1.1
Actuarial loss (gain)	1.1	3.1
Benefits and expenses paid	(0.3)	(0.3)
Benefit obligation - end of year	41.9	38.6	33.4
Change in plan assets:
Employer contribution to defined benefit retirement plans	0.3	0.3
Benefits and expenses paid	(0.3)	(0.3)
Amounts recognized on the balance sheet:
Current liabilities	23.8	0.3
Other non-current liabilities	18.1	38.3
Total accrued benefit	41.9	38.6
Amounts recognized in Accumulated Other Comprehensive Income:
Actuarial net (loss) gain	(7.3)	(10.2)
Prior service cost	(0.1)	(0.2)
Total amounts recognized in accumulated other comprehensive (loss) income	(7.4)	(10.4)
Total accumulated benefit obligation	40.9	38.0
Defined benefit retirement plans and postretirement benefit plans included within accrued compensation and benefits	24.8	1.3
Defined benefit retirement plans and postretirement benefit plans included within other non-current liabilities	39.6	81.9
Expected benefit payments for the plans
2014	23.8
2015	4.5
2016	2.2
2017	1.1
2018	1.4
2019-2023	10.2
Aggregate expected benefit payments	43.2
U.S. Postretirement Plans
Retirement and Other Postretirement Benefit Plans
Expected employer contribution in next fiscal year	0.6
Net Periodic Pension Expense
Defined benefit retirement plans	(0.2)	(0.2)	0.1
Net periodic benefit costs of defined benefit retirement plans
Interest cost	0.2	0.3	0.4
Net amortization and deferral	(0.4)	(0.5)	(0.3)
Net periodic benefit cost	(0.2)	(0.2)	0.1
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income
Net loss (gain)	(1.6)	0.1
Amortization of actuarial losses	0.4	0.5
Total recognized in other comprehensive income (pre-tax)	(1.2)	0.6
Change in benefit obligation:
Benefit obligation - beginning of year	8.1	8.0
Interest cost	0.2	0.3	0.4
Plan participants' contributions	0.1	0.1
Actuarial loss (gain)	(1.6)	0.1
Benefits and expenses paid	(0.4)	(0.4)
Benefit obligation - end of year	6.4	8.1	8.0
Change in plan assets:
Employer contribution to defined benefit retirement plans	0.3	0.3
Plan participants' contributions	0.1	0.1
Benefits and expenses paid	(0.4)	(0.4)
Amounts recognized on the balance sheet:
Current liabilities	0.6	0.6
Other non-current liabilities	5.8	7.5
Total accrued benefit	6.4	8.1
Amounts recognized in Accumulated Other Comprehensive Income:
Actuarial net (loss) gain	4.3	3.1
Total amounts recognized in accumulated other comprehensive (loss) income	4.3	3.1
Expected benefit payments for the plans
2014	0.6
2015	0.7
2016	0.7
2017	0.6
2018	0.7
2019-2023	2.9
Aggregate expected benefit payments	6.2
European Defined Benefit Retirement Plans
Retirement and Other Postretirement Benefit Plans
Curtailment gain			(5.7)
Service credits recognized as a curtailment gain per diluted share (in dollars per share)	$ 0.04
Net Periodic Pension Expense
Defined benefit retirement plans	0.8	0.7	(4.5)
Net periodic benefit costs of defined benefit retirement plans
Service cost	0.7	0.5	1.1
Interest cost	6.9	6.6	7.2
Expected return on plan assets	(8.0)	(7.3)	(7.8)
Net amortization and deferral	1.2	0.9	0.7
Curtailment gain			(5.7)
Net periodic benefit cost	0.8	0.7	(4.5)
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income
Net loss (gain)	(16.5)	12.1
Amortization of actuarial losses	(1.3)	(0.9)
Effect of foreign exchange	0.2	1.9
Total recognized in other comprehensive income (pre-tax)	(17.6)	13.1
Change in benefit obligation:
Benefit obligation - beginning of year	164.8	139.8
Service cost	0.7	0.5	1.1
Interest cost	6.9	6.6	7.2
Plan participants' contributions	0.1	0.1
Actuarial loss (gain)	(8.3)	15.2
Benefits and expenses paid	(4.9)	(3.7)
Currency translation adjustments	3.5	6.3
Benefit obligation - end of year	162.7	164.8	139.8
Change in plan assets:
Fair value of plan assets - beginning of year	128.3	110.8
Actual return on plan assets	16.2	10.3
Employer contribution to defined benefit retirement plans	5.9	5.7
Plan participants' contributions	0.1	0.1
Benefits and expenses paid	(4.9)	(3.7)
Currency translation adjustments	3.7	5.1
Fair value of plan assets - end of year	149.3	128.3	110.8
Amounts recognized on the balance sheet:
Noncurrent Assets	2.7
Current liabilities	0.4	0.4
Other non-current liabilities	15.7	36.1
Total accrued benefit	16.1	36.5
Amounts recognized in Accumulated Other Comprehensive Income:
Actuarial net (loss) gain	(32.2)	(49.7)
Prior service cost	(0.1)	(0.1)
Total amounts recognized in accumulated other comprehensive (loss) income	(32.3)	(49.8)
Total accumulated benefit obligation	17.5	160.6
Accumulated benefit obligation in excess of plan assets	11.0	32.3
Expected benefit payments for the plans
2014	3.8
2015	4.0
2016	5.0
2017	5.7
2018	6.8
2019-2023	37.1
Aggregate expected benefit payments	62.4
European Defined Benefit Retirement Plans | Minimum
Retirement and Other Postretirement Benefit Plans
Expected long-term weighted average rate of return for next fiscal year (as a percent)	3.25%
European Defined Benefit Retirement Plans | Maximum
Retirement and Other Postretirement Benefit Plans
Expected long-term weighted average rate of return for next fiscal year (as a percent)	4.50%
United Kingdom defined benefit plan (the U.K. Plan)
Retirement and Other Postretirement Benefit Plans
Total plan assets invested in active corporate bond funds (as a percent)	57.00%
Expected long-term weighted average rate of return for next fiscal year (as a percent)	6.50%
Curtailment gain	5.7
Service credits recognized as a curtailment gain per diluted share (in dollars per share)	$ 0.04
Net periodic benefit costs of defined benefit retirement plans
Curtailment gain	$ 5.7