Acquisitions (Tables)

9 Months Ended

Sep. 30, 2012

Business Acquisition [Line Items]

Business Acquisition, Pro Forma Information [Table Text Block]

	September 30, 2012
Revenues	$	7.7
Operating profit	$	—
Net income	$	—

Schedule of Business Acquisitions, by Acquisition [Table Text Block]

	At August 31, 2012
Assets:
Property, plant and equipment (including mineral rights)	$	54.6
Other non-current assets	2.5
Goodwill	7.5
Other intangible assets	15.9
Total assets acquired	$	80.5
Liabilities:
Other current liabilities	$	0.7
Other long-term liabilities	15.0
Total liabilities assumed	$	15.7
Net assets acquired	$	64.8