Property, Equipment and Leasehold Improvements (Tables)

12 Months Ended

Dec. 31, 2021

Property, Plant and Equipment [Abstract]

Schedule of property, equipment and leasehold improvements

Property, equipment and leasehold improvements consist of the following:

	December 31,
(dollars in millions)	2021		2020
Laboratory equipment	$	13.6	$	11.1
Office equipment	1.4		1.2
Leasehold improvements	8.4		6.1
Total property, equipment and leasehold improvements	23.4		18.4
Less: accumulated depreciation	(10.8)		(6.1)
Property, equipment and leasehold improvements, net	$	12.7	$	12.3