Receivables (Tables)

9 Months Ended

Sep. 30, 2017

Receivables [Abstract]

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

Receivables consist of the following:

Dollar amounts in millions	September 30, 2017			December 31, 2016
Trade receivables	$	157.1		$	96.1
Income tax receivable	2.8			1.7
Other receivables	12.5			11.5
Allowance for doubtful accounts	(1.0		)	(1.0		)
Total	$	171.4		$	108.3