Inventories

12 Months Ended

Dec. 31, 2018

Inventory Disclosure [Abstract]

Inventories

Inventories

Inventories consist of the following:

	As of December 31,
	2018		2017
Raw materials	$	226.8	$	190.0
Work-in-process	571.1		302.0
Finished goods	24.4		21.8
Deferred costs	328.9		212.3
	$	1,151.2	$	726.1

Deferred costs represent the costs of product manufactured and shipped to the Company's collaborators for which recognition of revenue has been deferred (see Note 1).