Inventories (Tables)

3 Months Ended

Mar. 31, 2018

Inventories

Schedule of inventories

Inventories consisted of the following (in millions):

	March 31,		December 31,
	2018		2017
Raw materials	$	161.1	$	152.0
Work-in-process	204.6		183.1
Finished goods	95.0		96.6
Demonstration units	57.3		54.5
Inventories	$	518.0	$	486.2