Property, Equipment, and Software (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property, equipment, and software, Gross	$ 15,563		$ 13,801	$ 13,675
Less: Accumulated depreciation and amortization	(10,235)		(9,208)	(7,017)
Property, equipment, and software, net	5,328		4,593	6,658
Depreciation and amortization	2,463	$ 1,789	6,644	7,377
Software and computer equipment
Property, Plant and Equipment [Line Items]
Property, equipment, and software, Gross	1,544		1,381	1,392
Furniture, office equipment and other
Property, Plant and Equipment [Line Items]
Property, equipment, and software, Gross	1,538		567	387
Internally developed software
Property, Plant and Equipment [Line Items]
Property, equipment, and software, Gross	11,369		10,741	10,601
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, equipment, and software, Gross	1,112		1,112	1,295
Property equipment software
Property, Plant and Equipment [Line Items]
Depreciation and amortization	$ 1,123	$ 982	$ 3,786	$ 3,680

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 aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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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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