Inventories (Tables)

3 Months Ended

Mar. 31, 2019

Inventories

Schedule of inventories

Inventories consisted of the following (in millions):

	March 31,		December 31,
	2019		2018
Raw materials	$	178.7	$	164.5
Work-in-process		200.4		182.4
Finished goods		92.3		94.8
Demonstration units		70.4		67.9
Inventories	$	541.8	$	509.6