Impairments Restructuring Charges and Other Items (Details 1) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2012
Activities for accrued impairment, restructuring charges and other items
Beginning balance	$ 1.9
Accruals	1.3
Payments	(1.7)
Ending balance	1.5
Severance [Member]
Activities for accrued impairment, restructuring charges and other items
Beginning balance	0.1
Accruals	1.3
Payments	(1.3)
Ending balance	0.1
Other [Member]
Activities for accrued impairment, restructuring charges and other items
Beginning balance	1.8
Accruals	0
Payments	(0.4)
Ending balance	$ 1.4