Property and Equipment - Summary of Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 32,599	$ 38,902
Less: accumulated depreciation	(23,002)	(26,895)
Property and equipment, net	9,597	12,007
Purchased software, including capitalized software development costs
Property, Plant and Equipment [Line Items]
Property and equipment, gross	13,965	16,239
Computer hardware
Property, Plant and Equipment [Line Items]
Property and equipment, gross	8,975	12,292
Furniture and office equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	2,369	2,518
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	7,244	7,396
Construction in process
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 46	$ 457

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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