Balance Sheet Components (Tables)

9 Months Ended

Sep. 29, 2019

Balance Sheet Related Disclosures [Abstract]

Schedule of Available-for-Sale Short-Term Investments

Available-for-sale short-term investments

	As of
	September 29, 2019								December 31, 2018
	Cost		Unrealized Gains		Unrealized Losses		Estimated Fair Value		Cost		Unrealized Gains		Unrealized Losses			Estimated Fair Value
	(In thousands)
U.S. treasuries	$	—	$	—	$	—	$	—	$	70,330	$	1	$	(17	)	$	70,314
Certificates of deposits	145		—		—		145		149		—		—			149
Total	$	145	$	—	$	—	$	145	$	70,479	$	1	$	(17	)	$	70,463

Schedule of Inventories

Inventories

	As of
	September 29, 2019		December 31, 2018
	(In thousands)
Raw materials	$	45,235	$	3,427
Finished goods	230,349		240,444
Total inventories	$	275,584	$	243,871

Schedule of Property and Equipment, Net

Property and equipment, net  

	As of
	September 29, 2019			December 31, 2018
	(In thousands)
Computer equipment	$	9,885		$	9,205
Furniture, fixtures and leasehold improvements	18,542			18,286
Software	28,088			28,065
Machinery and equipment	67,818			60,552
Total property and equipment, gross	124,333			116,108
Accumulated depreciation and amortization	(104,662		)	(95,931		)
Total property and equipment, net	$	19,671		$	20,177

Schedule of Intangibles, Net

Intangibles, net

	As of September 29, 2019							As of December 31, 2018
	Gross		Accumulated Amortization			Net		Gross		Accumulated Amortization			Net
	(In thousands)
Technology	$	59,799	$	(57,299	)	$	2,500	$	59,799	$	(56,978	)	$	2,821
Customer contracts and relationships	56,800		(48,956		)	7,844		56,800		(44,280		)	12,520
Other	10,345		(8,990		)	1,355		10,345		(8,540		)	1,805
Total intangibles, net	$	126,944	$	(115,245	)	$	11,699	$	126,944	$	(109,798	)	$	17,146

Schedule of Estimated Amortization Expense Related to Intangibles

As of September 29, 2019, estimated amortization expense related to finite-lived intangibles for the remaining years is as follows (in thousands):

2019 (remaining three months)	$	1,594
2020	6,205
2021	2,044
2022	527
2023	514
Thereafter	815
Total estimated amortization expense	$	11,699

Schedule of Other Non-Current Assets

Other non-current assets

	As of
	September 29, 2019		December 31, 2018
	(In thousands)
Non-current deferred income taxes	$	57,055	$	57,557
Long-term investments	8,147		2,886
Other	7,434		6,990
Total other non-current assets	$	72,636	$	67,433

Schedule of Other Accrued Liabilities

Other accrued liabilities

	As of
	September 29, 2019		December 31, 2018
	(In thousands)
Current operating lease liabilities	$	9,765	$	—
Sales and marketing	63,027		91,548
Warranty obligations	10,858		14,412
Sales returns	45,547		46,318
Freight and duty	5,519		10,586
Other	28,617		36,608
Total other accrued liabilities	$	163,333	$	199,472