Inventories (Tables)

3 Months Ended

Mar. 31, 2015

Inventories

Schedule of inventories

Inventories consisted of the following (in millions):

	March 31,		December 31,
	2015		2014
Raw materials	$	164.3	$	159.5
Work-in-process	140.5		169.5
Finished goods	134.0		109.9
Demonstration units	35.1		38.5
Inventories	$	473.9	$	477.4