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Balance sheet components (Tables) | 12 Months Ended
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Sep. 28, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Summary of changes in allowance for doubtful accounts | The following table summarizes changes in the allowance for doubtful accounts for fiscal 2019, 2018 and 2017:
| 2019 |  | 2018 |  | 2017
(In thousands) |  |  |  |  |
Beginning balance | $ | 872 |  |  | $ | 804 |  |  | $ | 726 |
Increases | 1,034 |  |  | 635 |  |  | 449 |
Write-offs | (651 | ) |  | (567 | ) |  | (371 | )
Ending balance | $ | 1,255 |  |  | $ | 872 |  |  | $ | 804 |
Summary of changes in allowance for sales incentives | The following table summarizes the changes in the allowance for sales incentives for fiscal 2019, 2018 and 2017:
| 2019 |  | 2018 |  | 2017
(In thousands) |  |  |  |  |
Beginning balance | $ | 11,754 |  |  | $ | 11,195 |  |  | $ | 8,913 |
Charged to revenue | 87,703 |  |  | 90,246 |  |  | 65,879 |
Utilization of sales incentive allowance | (79,406 | ) |  | (89,687 | ) |  | (63,597 | )
Ending balance | $ | 20,051 |  |  | $ | 11,754 |  |  | $ | 11,195 |
Schedule of inventories, net | Inventories, net, consist of the following:
| 2019 |  | 2018
(In thousands)
Finished goods | $ | 207,723 |  |  | $ | 176,181 |
Components | 12,061 |  |  | 17,012 |
Inventories | $ | 219,784 |  |  | $ | 193,193 |
Schedule of property and equipment | Depreciation is calculated using the straight-line method over the estimated useful lives of the related assets as follows:
Computer hardware and software | 2-3 years
Furniture and fixtures | 3-5 years
Tooling and production line test equipment | 2-4 years
Leasehold improvements | 2-10 years
Product displays | 1-3 years
Property and equipment, net by country as of September 28, 2019 and September 29, 2018 were as follows:
| 2019 |  | 2018
(In thousands) |  |  |
United States | $ | 48,370 |  |  | $ | 48,441 |
China | 16,539 |  |  | 18,729 |
Other countries | 13,230 |  |  | 18,201 |
Property and equipment, net | $ | 78,139 |  |  | $ | 85,371 |
Property and equipment, net consist of the following:
| 2019 |  | 2018
(In thousands)
Computer hardware and software | $ | 47,775 |  |  | $ | 46,385 |
Furniture and fixtures | 9,594 |  |  | 9,696 |
Tooling and production line test equipment | 54,536 |  |  | 47,297 |
Leasehold improvements | 58,944 |  |  | 53,962 |
Product displays | 45,672 |  |  | 40,265 |
Total property and equipment | 216,521 |  |  | 197,605 |
Accumulated depreciation and amortization | (138,382 | ) |  | (112,234 | )
Property and equipment, net | $ | 78,139 |  |  | $ | 85,371 |
Schedule of accrued expenses | Accrued expenses consisted of the following:
| 2019 |  | 2018
(In thousands)
Accrued advertising and marketing | $ | 25,662 |  |  | $ | 11,613 |
Accrued taxes | 4,388 |  |  | 4,175 |
Accrued inventory | 6,494 |  |  | 4,179 |
Accrued manufacturing, logistics and product development | 14,783 |  |  | 8,290 |
Accrued general and administrative | 12,455 |  |  | 3,322 |
Other accrued payables | 6,074 |  |  | 7,108 |
Total accrued expenses | $ | 69,856 |  |  | $ | 38,687 |
Summary of changes in deferred revenue | The following table summarizes the changes in the deferred revenue balances:
| 2019 |  | 2018 |  | 2017
(In thousands) |  |  |  |  |
Deferred revenue, beginning of period | $ | 50,967 |  |  | $ | 45,567 |  |  | $ | 36,160 |
Recognition of revenue included in beginning of period deferred revenue | (11,934 | ) |  | (10,627 | ) |  | (6,878 | )
Revenue deferred, net of revenue recognized on contracts in the respective period | 17,416 |  |  | 16,027 |  |  | 16,285 |
Deferred revenue, end of period | $ | 56,449 |  |  | $ | 50,967 |  |  | $ | 45,567 |
Schedule of expected recognition of deferred revenue | The Company expected the following recognition of deferred revenue as of September 28, 2019:
| For the fiscal years ending |  |
(In thousands) | 2020 |  | 2021 |  | 2022 |  | 2023 |  | 2024 and Beyond |  | Total
Revenue expected to be recognized | $ | 13,654 |  |  | $ | 12,143 |  |  | $ | 10,297 |  |  | $ | 8,369 |  |  | $ | 11,986 |  |  | $ | 56,449 |
Schedule of other current liabilities | Other current liabilities consist of the following:
| September 28, 2019 |  | September 29, 2018
(In thousands) |  |  |
Reserve for returns | $ | 12,110 |  |  | $ | 5,005 |
Product warranty liability | 3,254 |  |  | 2,450 |
Other | 2,184 |  |  | 3,403 |
Total other current liabilities | $ | 17,548 |  |  | $ | 10,858 |
Schedule of warranty liability | The following table presents the changes in the Company’s warranty liability for the fiscal years ended September 28, 2019 and September 29, 2018:
| September 28, 2019 |  | September 29, 2018
(In thousands) |  |  |
Warranty liability, beginning of period | $ | 2,450 |  |  | $ | 2,437 |
Provision for warranties issued during the period | 12,795 |  |  | 10,678 |
Settlements of warranty claims during the period | (11,991 | ) |  | (10,665 | )
Warranty liability, end of period | $ | 3,254 |  |  | $ | 2,450 |

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