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Condensed consolidated financial statement details (Tables)

9 Months Ended

Sep. 30, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Inventory



(in thousands)	September 30, 2018		December 31, 2017
Components	$	21,150	$	18,995
Finished goods	102,099		131,556
Total inventory	$	123,249	$	150,551

Property, Plant and Equipment

Property and equipment, net



(in thousands)	September 30, 2018			December 31, 2017
Leasehold improvements	$	66,466		$	67,713
Production, engineering and other equipment	50,704			47,502
Tooling	17,661			24,871
Computers and software	20,828			20,636
Furniture and office equipment	15,114			14,895
Tradeshow equipment and other	6,965			7,237
Construction in progress	121			347
Gross property and equipment	177,859			183,201
Less: Accumulated depreciation and amortization	(124,816		)	(114,614		)
Property and equipment, net	$	53,043		$	68,587

Schedule of Finite-Lived Intangible Assets

Intangible assets



	September 30, 2018
(in thousands)	Gross carrying value		Accumulated amortization			Net carrying value
Purchased technology	$	50,501	$	(35,369	)	$	15,132
Domain name	15		—			15
Total intangible assets	$	50,516	$	(35,369	)	$	15,147



	December 31, 2017
(in thousands)	Gross carrying value		Accumulated amortization			Net carrying value
Purchased technology	$	49,901	$	(26,017	)	$	23,884
IPR&D	615		—			615
Total intangible assets	$	50,516	$	(26,017	)	$	24,499

Schedule of Future Amortization

Amortization expense was $3.4 million and $2.2 million for the three months ended September 30, 2018 and 2017, respectively, and $9.4 million and $6.7 million for the nine months ended September 30, 2018 and 2017, respectively. At September 30, 2018, expected amortization expense of intangible assets with definite lives for future periods is as follows:



(in thousands)	Total
Year ending December 31,
2018 (remaining 3 months)	$	2,082
2019	7,818
2020	4,363
2021	869
2022	—
	$	15,132

Schedule of Other Assets

Other long-term assets



(in thousands)	September 30, 2018		December 31, 2017
Point of purchase (POP) displays	$	11,106	$	16,451
Long-term deferred tax assets	1,543		825
Deposits and other	8,377		19,738
Other long-term assets	$	21,026	$	37,014

Schedule of Accrued Liabilities

Accrued liabilities



(in thousands)	September 30, 2018		December 31, 2017
Accrued payables ⁽¹⁾	$	44,500	$	44,582
Employee related liabilities ⁽¹⁾	18,445		24,945
Accrued sales incentives	37,070		89,549
Refund liability	13,728		—
Warranty liability	9,258		9,934
Customer deposits	4,166		8,700
Income taxes payable	2,229		1,247
Purchase order commitments	4,767		6,162
Inventory received	54,556		14,470
Other	5,194		13,441
Accrued liabilities	$	193,913	$	213,030

Schedule of Product Warranty Liability

Product warranty



	Three months ended September 30,						Nine months ended September 30,
(in thousands)	2018			2017			2018			2017
Beginning balance	$	10,692		$	9,974		$	10,373		$	11,945
Charged to cost of revenue	5,055			5,986			18,163			13,394
Settlement of warranty claims	(5,878		)	(6,273		)	(18,667		)	(15,652		)
Ending balance	$	9,869		$	9,687		$	9,869		$	9,687