Inventories (Tables)

9 Months Ended

Sep. 30, 2018

Inventories

Schedule of inventories

Inventories consisted of the following (in millions):

	September 30,		December 31,
	2018		2017
Raw materials	$	156.1	$	152.0
Work-in-process		208.7		183.1
Finished goods		89.5		96.6
Demonstration units		64.3		54.5
Inventories	$	518.6	$	486.2