Fair Values of Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2013

Fair Values of Financial Instruments

Schedule of the assets and liabilities measured at fair value on a recurring basis

(in millions)	Total Carrying Value		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash equivalents at September 30, 2013	$	77.1	$	77.1	$	—	$	—
Cash equivalents at December 31, 2012	174.1		174.1		—		—

Schedule of the fair value of the Senior Secured Term Loan Facility and the Senior Notes based upon trading activity among lenders

(in millions)	Total Carrying Value		Principal		Estimated Fair Value
2013 Senior Secured Facility at September 30, 2013	$	545.1	$	547.3	$	545.9
2013 Senior Notes at September 30, 2013	598.8		600.0		571.5
2011 Senior Secured Facility at December 31, 2012	483.6		495.0		496.2