Inventories (Tables)

3 Months Ended

Mar. 31, 2016

Inventories

Schedule of inventories

Inventories consisted of the following (in millions):

	March 31,		December 31,
	2016		2015
Raw materials	$	141.2	$	158.8
Work-in-process	188.7		131.1
Finished goods	91.3		93.3
Demonstration units	38.9		38.8
Inventories	$	460.1	$	422.0