Inventories (Tables)

6 Months Ended

Jun. 30, 2015

Inventory Disclosure [Abstract]

Summary of Inventories

Inventories were as follows:

	As of
(in millions)	June 30, 2015		December 31, 2014		June 30, 2014
Raw materials and supplies	$	30.2	$	29.7	$	36.8
Work-in-process	77.3		78.7		71.1
Finished goods	88.1		80.6		84.4
Total inventories	$	195.6	$	189.0	$	192.3