Supplemental Cash Flow Information (Details) (USD $) In Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Supplemental disclosure of cash flow information:
Interest paid			$ 5.6	$ 1.5
Income taxes paid	0.4	0	1.4	0.3
Supplemental disclosure of non-cash transactions:
Non-cash capital expenditures			0.3	0.6
Issuance of Nichols Promissory Note - Note 4			$ 0	$ 6.7