Inventories

6 Months Ended

Jun. 30, 2019

Inventory Disclosure [Abstract]

Inventories

Inventories

Inventories consist of the following:

	June 30,		December 31,
	2019		2018
Raw materials	$	229.7	$	226.8
Work-in-process	663.1		571.1
Finished goods	34.1		24.4
Deferred costs	390.3		328.9
	$	1,317.2	$	1,151.2

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