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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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, net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Sep. 30, 2020
Property, Plant and Equipment [Line Items]
Gross property and equipment	$ 37,511	$ 26,387
Less: Accumulated depreciation	(11,072)	(11,643)
Total property and equipment, net	26,439	14,744
Depreciation expense on property and equipment	4,000	3,100	$ 2,400
Data center and computer equipment
Property, Plant and Equipment [Line Items]
Gross property and equipment	4,597	7,983
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Gross property and equipment	6,021	3,953
Office equipment
Property, Plant and Equipment [Line Items]
Gross property and equipment	3,324	1,141
Leasehold improvements
Property, Plant and Equipment [Line Items]
Gross property and equipment	22,952	6,192
Construction in process
Property, Plant and Equipment [Line Items]
Gross property and equipment	$ 617	$ 7,118
Furniture and fixtures and leasehold improvements
Property, Plant and Equipment [Line Items]
Gross property and equipment				$ 13,900