Summary of Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2013

Summary of Accounting Policies

Schedule for Company's allowance for doubtful accounts

in millions	2013			2012			2011
Balance at January 1	$	5.2		$	5.2		$	4.6
Provision charged to expense		0.1			1.0			0.9
Provision charged to other accounts		(1.4	)		—			0.3
Amounts written off, net of recoveries		(0.6	)		(1.0	)		(0.6	)
Balance at December 31	$	3.3		$	5.2		$	5.2