Inventories (Tables)

9 Months Ended

Sep. 30, 2016

Inventories

Schedule of inventories

Inventories consisted of the following (in millions):

	September 30,		December 31,
	2016		2015
Raw materials	$	156.5	$	158.8
Work-in-process	189.9		131.1
Finished goods	99.1		93.3
Demonstration units	37.6		38.8
Inventories	$	483.1	$	422.0