Inventories (Tables)

12 Months Ended

Dec. 31, 2018

Inventories [Abstract]

Inventories

Inventories consist of the following:

	December 31,
(in millions)	2018		2017
Raw materials and supplies	$	51.8	$	36.1
Work-in-process		103.2		76.6
Finished goods		50.8		30.1
Total inventories	$	205.8	$	142.8

The increase in inventories as of December 31, 2018 was primarily due to the acquisition of PaxVax and Adapt in October 2018.