Inventories (Tables)

12 Months Ended

Dec. 31, 2016

Inventory Disclosure [Abstract]

Schedule of inventories

Inventories consisted of the following:

	December 31,
	2016		2015
	(in millions)
Finished goods	$	6.8	$	7.2
Raw materials, spare parts and supplies	1.8		3.5
Total	$	8.6	$	10.7