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Balance Sheet Details (Tables)

12 Months Ended

Dec. 31, 2022

Balance Sheet Related Disclosures [Abstract]

Accounts Receivable, net

Accounts receivable, net consisted of the following (in thousands):

						December 31,
						2022						2021
Accounts receivable						$	94,201					$	85,944
Allowance for doubtful accounts						(397)						(725)
						$	93,804					$	85,219

Changes in Allowance for Doubtful Accounts and Product Reserve

The table below summarizes the changes in allowance for doubtful accounts and product return liability for the periods indicated (in thousands):

						Balance at Beginning of Year						Additions Charged to Expenses or Revenue Net of Recoveries						Write Offs and Returns						Balance at End of Year
Year Ended December 31, 2022:
Allowance for doubtful accounts						$	725					$	(276)					$	(52)					$	397
Product return liability						1,836						5,622						(4,497)						2,961
Year Ended December 31, 2021:
Allowance for doubtful accounts						$	1,405					$	(201)					$	(479)					$	725
Product return liability						1,888						3,681						(3,733)						1,836
Year Ended December 31, 2020:
Allowance for doubtful accounts						$	374					$	1,085					$	(54)					$	1,405
Product return liability						919						3,391						(2,422)						1,888

Inventory

Inventory consisted of the following (in thousands):

						December 31,
						2022						2021
Raw materials						$	640					$	130
Finished goods						148,520						88,750
						$	149,160					$	88,880

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure

Prepaid expenses and other current assets consisted of the following (in thousands):

						December 31,
						2022						2021
Supplier deposits						$	39,064					$	6,191
Prepaid expenses and other current assets						23,627						24,620
						$	62,691					$	30,811

Property and Equipment, net

Property and equipment, net consisted of the following (in thousands):

						December 31,
						2022						2021
Test equipment						$	44,106					$	39,476
Computer equipment						13,396						11,156
Software						10,389						9,013
Leasehold improvements						1,730						1,351
Furniture and fixtures						1,153						1,812
						70,774						62,808
Accumulated depreciation and amortization						(44,940)						(41,025)
						$	25,834					$	21,783

Schedule of Other Assets, Noncurrent

Other long-term assets consisted of the following (in thousands):

						December 31,
						2022						2021
Intangible asset						$	4,253					$	6,885
Other long-term assets						14,889						6,800
						$	19,142					$	13,685

Accrued Liabilities

Accrued liabilities consisted of the following (in thousands):

						December 31,
						2022						2021
Compensation and related benefits						$	27,813					$	23,165
Component inventory held by suppliers						10,280						7,611
Professional and consulting fees						7,307						4,819
Current portion of revenue-share payments						7,210						4,731
Current portion of warranty and retrofit						6,377						7,076
Customer advances or rebates						5,653						4,742
Taxes payable						4,581						4,251
Operating leases						3,949						3,596
Freight						3,649						3,997
Business events						3,167						—
Product returns						2,961						1,836
Other						7,527						5,773
						$	90,474					$	71,597

Schedule of Product Warranty Liability

Changes in the Company’s accrued warranty and retrofit liability were as follows (in thousands):

						Years Ended December 31,
						2022						2021						2020
Balance at beginning of year						$	9,594					$	9,208					$	7,294
Provision for warranty and retrofit charged to cost of revenue						1,315						3,370						5,888
Utilization of reserve						(2,523)						(2,984)						(3,974)
Balance at end of year						$	8,386					$	9,594					$	9,208

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