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Balance Sheet Details - Property and Equipment, net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 70,774	$ 62,808
Accumulated depreciation and amortization	(44,940)	(41,025)
Property and equipment, net	25,834	21,783
Depreciation and amortization	14,315	15,012	$ 13,718
Test equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	44,106	39,476
Computer equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	13,396	11,156
Software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	10,389	9,013
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	1,730	1,351
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 1,153	$ 1,812

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- Definition

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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