Employee Benefits (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Loss on curtailment					$ 2.4
Expense related to special termination benefits					0.3
Continuing Operations [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Recurring employee benefit expense	1.4		2.3		5.5		7.6
Discontinued Operations [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Recurring employee benefit expense	0.4		0.7		1.4		1.9
Pension [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	0.6		0.7		2.0		2.6
Interest cost	1.2		1.2		4.0		3.7
Expected return on plan assets	(1.4)		(0.9)		(3.8)		(2.9)
Amortization of prior service costs	1.1	[1]	1.2	[1]	3.6	[1]	3.7	[1]
Loss on curtailment	0				2.0
Expense related to special termination benefits	0		0		0.3		0
Amortization of actuarial loss	0.2	[1]	0.5	[1]	0.6	[1]	1.7	[1]
Periodic expense	1.7		2.7		8.7		8.8
Other Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	0		0.1		0		0.1
Interest cost	0		0		0.2		0.2
Amortization of prior service costs	0.1	[2]	0.1	[2]	0.3	[2]	0.3	[2]
Recognized net actuarial loss	0		0.1		0		0.1
Loss on curtailment	0				0.4		0
Periodic expense	0.1		0.3		0.9		0.7
Funded Pension Plan [Member] | Pension [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Contributions to pension plan					8.1
Unfunded Pension Plan [Member] | Pension [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Contributions to pension plan					4.4
Expected to contribute to pension plans	0.6
Other Postretirement Benefit Plans, Defined Benefit [Member] | Pension [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Expected to contribute to pension plans	$ 0.1

[1] Amortization of prior service costs and actuarial losses out of AOCI are recognized in the Condensed Consolidated Statements of Operations in "General and administrative."

[2] Amortization of prior service costs out of AOCI are recognized in the Condensed Consolidated Statements of Operations in "General and administrative."