Inventories (Tables)

12 Months Ended

Dec. 31, 2018

Inventories

Schedule of inventories

Inventories consisted of the following at December 31, (in millions):

	2018		2017
Raw materials	$	164.5	$	152.0
Work-in-process		182.4		183.1
Finished goods		94.8		96.6
Demonstration units		67.9		54.5
Inventories	$	509.6	$	486.2