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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No definition available.

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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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Financial Statements Details - Property and Equipment, Net (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 152,364		$ 147,412
Less: accumulated depreciation	(119,902)		(115,181)
Property and equipment, net	32,462		32,231
Depreciation	4,900	$ 5,200
Equipment and machinery
Property, Plant and Equipment [Line Items]
Property and equipment, gross	74,401		70,655
Computer hardware and software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	42,201		40,081
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	3,793		3,787
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	31,499		31,448
Construction-in-process
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 470		$ 1,441