Property, Plant, and Equipment - Schedule (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 17.6	$ 8.1
Accumulated depreciation	(5.9)	(2.4)
Property and equipment, net	11.7	5.7
Computer equipment and software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	11.7	4.8
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	4.6	2.2
Furniture and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 1.3	$ 1.1