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Other Balance Sheet Details - Property and Equipment (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Property and equipment	$ 153.8	$ 124.9
Less accumulated depreciation	(83.0)	(66.3)
Total property and equipment, net	70.8	58.6
Tenant improvements
Property, Plant and Equipment [Line Items]
Property and equipment	38.1	37.9
Scientific equipment
Property, Plant and Equipment [Line Items]
Property and equipment	79.6	58.8
Computer equipment
Property, Plant and Equipment [Line Items]
Property and equipment	25.2	21.5
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment	$ 10.9	$ 6.7

X

- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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