Balance Sheet Components (Tables)

12 Months Ended

Feb. 02, 2020

Balance Sheet Components Disclosure [Abstract]

Schedule of Inventory, Current

Inventory consists of the following (in thousands):

	At the End of Fiscal
	2019		2020
Raw materials	$	3,349	$	2,974
Finished goods	41,338		35,544
Inventory	$	44,687	$	38,518

Schedule of Property and Equipment, Net

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

	At the End of Fiscal
	2019		2020
Test equipment	$	170,930	$	205,555
Computer equipment and software	117,330		141,387
Furniture and fixtures	6,980		8,324
Leasehold improvements	34,286		40,356
Total property and equipment	329,526		395,622
Less: accumulated depreciation and amortization	(204,173)		(272,882)
Property and equipment, net	$	125,353	$	122,740

Schedule of Intangible Assets, Net

Intangible assets, net consist of the following (in thousands):

	At the End of Fiscal
	2019						2020
	Gross Carrying Value		Accumulated Amortization		Net Carrying Amount		Gross Carrying Value		Accumulated Amortization		Net Carrying Amount
Technology patents	$	10,125	$	(6,572)	$	3,553	$	19,125	$	(8,933)	$	10,192
Developed technology	17,700		(1,135)		16,565		56,100		(8,035)		48,065
Intangible assets, net	$	27,825	$	(7,707)	$	20,118	$	75,225	$	(16,968)	$	58,257

Schedule of Expected Amortization Expenses for Intangible Assets

At the end of fiscal 2020, future expected amortization expense for intangible assets is as follows (in thousands):

Fiscal Years Ending	Estimated Future Amortization Expense
2021	$	10,804
2022	9,846
2023	9,300
2024	9,300
2025	9,300
Thereafter	9,707
Total	$	58,257

Goodwill

The change in the carrying amount of goodwill is as follows (in thousands):

	Amount
Balance as of the end of fiscal 2019	$	10,997
Goodwill acquired	26,587
Balance as of the end of fiscal 2020	$	37,584

Schedule of Accrued Expenses and Other Liabilities

Accrued expenses and other liabilities consist of the following (in thousands):

	At the End of Fiscal
	2019		2020
Taxes payable	$	7,146	$	9,012
Accrued marketing	6,173		7,679
Accrued travel and entertainment expenses	3,570		3,829
Acquisition consideration	3,725		6,149
Other accrued liabilities	19,246		20,554
Total accrued expenses and other liabilities	$	39,860	$	47,223