Supplemental Financial Data - Schedule of Property, Plant and Equipment - Net (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Less: accumulated depreciation	$ 54.6	$ 45.7
Property, plant and equipment - net	91.1	102.1
Right of use assets	9.4	15.9
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	7.7	7.7
Building and building improvement
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	63.8	63.7
Less: accumulated depreciation	5.6	4.0
Property, plant and equipment - net	58.2	59.7
Furniture and Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	62.2	61.9
Less: accumulated depreciation	41.7	32.8
Property, plant and equipment - net	20.5	29.1
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	12.0	14.5
Less: accumulated depreciation	7.3	8.9
Property, plant and equipment - net	$ 4.7	$ 5.6