Inventories

12 Months Ended

Dec. 31, 2021

Inventory Disclosure [Abstract]

Inventories

7. Inventories

Inventories consisted of the following (in millions):

	2021		2020
Raw materials	$	218.7	$	198.8
Work-in-process		254.9		245.7
Finished goods		144.9		152.1
Demonstration units		91.6		95.7
Inventories	$	710.1	$	692.3

Finished goods include in-transit systems that have been shipped to the Company’s customers but not yet installed and accepted by the customer. At December 31, 2021 and 2020, inventory-in-transit was $49.5 million and $67.8 million, respectively.