Retirement Benefit Plans (Schedule of Expected Benefit Payments) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012
U.S. Pension Plan
Defined Benefit Plan Disclosure [Line Items]
2013	$ 4.4
2014	4.5
2015	4.5
2016	4.5
2017	4.6
2018 - 2022	23.6
Total	46.1
Non-U.S. Pension Plan
Defined Benefit Plan Disclosure [Line Items]
2013	0.1
2014	0.2
2015	0.2
2016	0.2
2017	0.2
2018 - 2022	1.1
Total	2.0
Other Postretirement Benefit Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
2013	0.2
2014	0.3
2015	0.3
2016	0.3
2017	0.3
2018 - 2022	1.4
Total	$ 2.8