Inventory (Notes)

3 Months Ended

Mar. 31, 2018

Inventory Disclosure [Abstract]

Inventory

Inventories

Inventories consist of the following:

	March 31,		December 31,
	2018		2017
Raw materials	$	201,429	$	190,045
Work-in-process	374,505		302,042
Finished goods	22,848		21,791
Deferred costs	221,615		212,260
	$	820,397	$	726,138

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