Commitments, Contingencies and Leases (Tables)

12 Months Ended

Dec. 31, 2012

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Lease Payments for Capital Lease

Future minimum lease payments for the five years following 2012 and the years thereafter are shown in the table below. Also shown is the present value of minimum lease payments at December 31, 2012, which is reflected in the Consolidated Balance Sheets as current and noncurrent capital lease obligations of $0.7 million and $39.3 million, respectively:

	Years Ending December 31,
	(in millions)
2013	$	2.9
2014	3.3
2015	3.4
2016	3.5
2017	3.6
After 2017	48.5
Total minimum lease payments	65.2
Less: amount representing interest	(25.2		)
Present value of minimum lease payments at December 31, 2012	$	40.0