Inventories (Tables)

9 Months Ended

Sep. 30, 2017

Inventories

Schedule of inventories

Inventories consisted of the following (in millions):

	September 30,		December 31,
	2017		2016
Raw materials	$	154.0	$	132.8
Work-in-process	203.2		181.0
Finished goods	108.4		91.8
Demonstration units	49.7		34.8
Inventories	$	515.3	$	440.4