Acquisitions (Tables)

3 Months Ended

Mar. 31, 2013

Business Combinations [Abstract]

Schedule of recognized identified assets acquired and liabilities assumed

The following table summarizes the preliminary estimated fair values of the assets acquired and liabilities assumed of Reed Minerals as of the acquisition date:

	(In millions)
Property, plant and equipment (including mineral rights)	$	60.2
Other assets	15.0
Other intangible assets	8.2
Total assets acquired	83.4
Other current liabilities	8.3
Other long-term liabilities	8.2
Total liabilities assumed	16.5
Net assets acquired	66.9
Purchase price	73.3
Goodwill	$	6.4