Benefit Plans (Textuals) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 244.1	$ 214.5
Pension curtailment gain	3.5	0.0	$ 0.0
401 (k) plan contributions	15.6	6.5	$ 5.7
Accumulated benefit obligation	283.9	263.0
Expected contribution to the plan	$ 0.7
Assumed healthcare cost trend rate, benefit obligation	6.25%
Ultimate healthcare cost trend rate, benefit obligation	5.00%
Assumed healthcare cost trend rate, net periodic benefit cost	6.25%
Ultimate healthcare cost trend rate, net periodic benefit cost	5.00%
Defined Benefit Plan, Plan Assets, Contributions by Employer	$ 2.6
Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	39.4	33.4
Accumulated benefit obligation	$ 73.9	$ 64.0
Discount rate	1.28%	2.19%
Rate of compensation increase	2.49%	2.60%
United States [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.35%
Rate of compensation increase	4.25%	4.25%
Percentage of global plan assets	83.86%
Long-term rate of return on assets	5.60%	7.00%	7.00%
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 244.1	$ 214.5	$ 239.5
Actuarial net loss that will be amortized from accumulated other comprehensive loss	1.8
Prior service credit that will be amortized from accumulated other comprehensive loss	$ 0.1
Discount rate	2.79%	3.76%
Rate of compensation increase	2.49%	4.01%
Long-term rate of return on assets	5.54%	6.71%	6.47%
Defined Benefit Plan, Plan Assets, Contributions by Employer	$ 8.0	$ 2.7
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	$ 0.0	$ 0.0
Actuarial net loss that will be amortized from accumulated other comprehensive loss	1.6
Prior service credit that will be amortized from accumulated other comprehensive loss	0.7
Expected contribution to the plan	$ 0.7
Discount rate	3.20%	4.20%
Defined Benefit Plan, Plan Assets, Contributions by Employer	$ 0.2	$ 0.1
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target allocation	30.00%	65.00%
Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target allocation	70.00%	35.00%