Balance Sheet Components - (Tables)

9 Months Ended

Nov. 01, 2020

Balance Sheet Components Disclosure [Abstract]

Inventory

Inventory consists of the following (in thousands):

	At the End of
	Fiscal 2020		Third Quarter of Fiscal 2021
Raw materials	$	2,974	$	4,400
Finished goods	35,544		38,752
Inventory	$	38,518	$	43,152

Property and Equipment, Net

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

	At the End of
	Fiscal 2020		Third Quarter of Fiscal 2021
Test equipment	$	205,555	$	231,406
Computer equipment and software	141,387		173,253
Furniture and fixtures	8,324		8,842
Leasehold improvements	40,356		44,976
Total property and equipment	395,622		458,477
Less: accumulated depreciation and amortization	(272,882)		(300,277)
Property and equipment, net	$	122,740	$	158,200

Intangible Assets, Net

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

	At the End of
	Fiscal 2020						Third Quarter of Fiscal 2021
	Gross Carrying Value		Accumulated Amortization		Net Carrying Amount		Gross Carrying Value		Accumulated Amortization		Net Carrying Amount
Technology patents	$	19,125	$	(8,933)	$	10,192	$	19,125	$	(11,025)	$	8,100
Developed technology	56,100		(8,035)		48,065		77,712		(14,438)		63,274
Customer relationships	—		—		—		6,116		(73)		6,043
Trade name	—		—		—		3,762		(104)		3,658
Intangible assets, net	$	75,225	$	(16,968)	$	58,257	$	106,715	$	(25,640)	$	81,075

Expected Amortization Expenses for Intangible Assets

At the end of the third quarter of fiscal 2021, future expected amortization expense for intangible assets is as follows (in thousands):

Fiscal Years Ending	Estimated Future Amortization Expense
Remainder of 2021	$	4,313
2022	16,296
2023	15,750
2024	15,332
2025	14,496
Thereafter	14,888
Total	$	81,075

Goodwill

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

	Amount
Balance at the end of fiscal 2020	$	37,584
Goodwill acquired	323,413
Balance at the end of the third quarter of fiscal 2021	$	360,997

Accrued Expenses and Other Liabilities

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

	At the End of
	Fiscal 2020		Third Quarter of Fiscal 2021
Taxes payable	$	9,012	$	4,750
Accrued marketing	7,679		11,836
Accrued travel and entertainment expenses	3,829		1,054
Acquisition consideration	6,149		5,704
Other accrued liabilities	20,554		24,595
Total accrued expenses and other liabilities	$	47,223	$	47,939