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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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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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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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services 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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Property and Equipment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
Property and Equipment (Details) - USD ($) $ in Millions	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 42.1		$ 42.1		$ 34.5
Less: accumulated depreciation	(15.0)		(15.0)		(11.2)
Property and equipment, net	27.1		27.1		23.3
Depreciation expense	2.1	$ 1.3	4.0	$ 2.4
Computer equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	6.1		6.1		4.1
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	5.2		5.2		4.8
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	6.8		6.8		5.0
Internal use developed software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	22.0		22.0		19.7
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 2.0		$ 2.0		$ 0.9