Retirement Plans (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Employer contributions in current fiscal year	$ 0.4
United States
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost	0	0
Interest cost	0.7	0.8
Expected return on plan assets	(1.3)	(1.5)
Amortization of net actuarial loss	0.4	0.3
Total pension cost (credit)	(0.2)	(0.4)
International
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost	0.1	0.1
Interest cost	0	0
Expected return on plan assets	0	0
Amortization of net actuarial loss	0.1	0.1
Total pension cost (credit)	0.2	0.2
Minimum | Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated future employer contributions in current fiscal year	1.0
Maximum | Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated future employer contributions in current fiscal year	$ 3.0