Balance Sheet Detail - Property and Equipment, Net (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Dec. 31, 2019
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 58,556	$ 58,215
Accumulated depreciation	(24,371)	(23,218)
Property and equipment—net	34,185	34,997
Computer Equipment and Software
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 15,596	15,636
Computer Equipment and Software \| Minimum
Property Plant And Equipment [Line Items]
Property and equipment, Useful Life	3 years
Computer Equipment and Software \| Maximum
Property Plant And Equipment [Line Items]
Property and equipment, Useful Life	5 years
Internally Developed Software
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 6,521	5,948
Property and equipment, Useful Life	6 years
Furniture and Fixtures
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 6,559	6,589
Property and equipment, Useful Life	5 years
Office Equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 850	1,058
Office Equipment \| Minimum
Property Plant And Equipment [Line Items]
Property and equipment, Useful Life	3 years
Office Equipment \| Maximum
Property Plant And Equipment [Line Items]
Property and equipment, Useful Life	5 years
Leasehold Improvements
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 29,030	$ 28,984
Leasehold Improvements \| Minimum
Property Plant And Equipment [Line Items]
Property and equipment, Useful Life	1 year
Leasehold Improvements \| Maximum
Property Plant And Equipment [Line Items]
Property and equipment, Useful Life	10 years

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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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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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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