Inventories (Tables)

6 Months Ended

Jun. 30, 2015

Inventory Disclosure [Abstract]

Schedule of inventories

Inventories consisted of the following:

	June 30, 2015		December 31, 2014
	(in millions)
Finished goods	$	6.1	$	7.8
Materials and supplies	3.3		1.8
Total	$	9.4	$	9.6