Pension, Profit Sharing & Other Post-Retirement Benefits - Rollforward of Benefit Obligation and Plan Assets (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Defined Benefit [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at January 1,	$ 186.0	$ 168.1
Service cost	0.4	0.5	0.4
Interest cost	7.5	8.6	8.9
Loss (gain) due to foreign exchange	1.7	(0.2)
Actuarial loss (gain), excluding assumption changes	0.1	5.3
Actuarial loss due to assumption changes	9.5	15.4
Benefits and expenses paid	(12.2)	(11.7)
Benefit obligation at December 31,	193.0	186.0	168.1
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at January 1,	119.1	124.1
Actual gain (loss) on plan assets	13.6	(1.1)
Gain (loss) due to foreign exchange	1.2	(0.1)
Employer contribution	10.0	7.9
Fair value of plan assets at December 31,	131.7	119.1	124.1
Funded status at end of year	(61.3)	(66.9)
Accumulated benefit obligation at end of year	192.8	185.5
Post- Retirement Health Benefits [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at January 1,	5.3	6.9
Service cost	0	0	0
Interest cost	0.1	0.2	0.3
Loss (gain) due to foreign exchange	0	0
Actuarial loss (gain), excluding assumption changes	(0.1)	(1.1)
Actuarial loss due to assumption changes	0	0.1
Benefits and expenses paid	(3.1)	(0.8)
Benefit obligation at December 31,	2.2	5.3	6.9
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at January 1,	0	0
Actual gain (loss) on plan assets	0	0
Gain (loss) due to foreign exchange	0	0
Employer contribution	3.1	0.8
Fair value of plan assets at December 31,	0	0	0
Funded status at end of year	$ (2.2)	$ (5.3)