Balance Sheet Components - Property and Equipment, Net (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Property Plant And Equipment [Line Items]
Property and equipment, Total	$ 68,102	$ 67,552
Accumulated depreciation and amortization	(57,315)	(55,752)
Projects in process	5,362	4,810
Property and equipment, net	16,149	16,610
Software
Property Plant And Equipment [Line Items]
Property and equipment, Total	33,248	33,198
Computer Equipment
Property Plant And Equipment [Line Items]
Property and equipment, Total	24,853	24,342
Leasehold Improvements
Property Plant And Equipment [Line Items]
Property and equipment, Total	7,854	7,905
Furniture and Fixtures
Property Plant And Equipment [Line Items]
Property and equipment, Total	$ 2,147	$ 2,107

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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-Publisher FASB
-Name Accounting Standards Codification
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Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.

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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.

+ References

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