Condensed Consolidated Financial Statement Details (Tables)
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3 Months Ended |
Mar. 31, 2019 |
Property, Plant and Equipment [Abstract] |
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Schedule of Inventory |
Inventory consisted of the following (in thousands): | | | | | | | | | | March 31, 2019 | | December 31, 2018 | Raw materials | $ | 8,502 |
| | $ | 7,979 |
| Finished goods | 12,450 |
| | 9,951 |
| Total inventory | $ | 20,952 |
| | $ | 17,930 |
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Prepaid Expenses and Other Current Assets |
Prepaid expenses and other current assets consisted of the following (in thousands): | | | | | | | | | | March 31, 2019 | | December 31, 2018 | Prepaid expenses | $ | 6,675 |
| | $ | 6,679 |
| Deferred contract acquisition costs | 5,711 |
| | 6,564 |
| Other | 4,727 |
| | 1,419 |
| Total prepaid and other current assets | $ | 17,113 |
| | $ | 14,662 |
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Schedule of Property and Equipment, Net |
Property and equipment, net, consisted of the following (in thousands): | | | | | | | | | | | | Useful Life | | March 31, 2019 | | December 31, 2018 | | (in years) | |
| Equipment | 1-3 | | $ | 49,230 |
| | $ | 49,804 |
| Software | 1-3 | | 4,108 |
| | 4,088 |
| Furniture and fixtures | 1-3 | | 967 |
| | 967 |
| Leasehold improvements | 2-8 | | 3,834 |
| | 3,832 |
| Construction in progress | | | 692 |
| | 160 |
| Property and equipment, gross | | | 58,831 |
| | 58,851 |
| Less: accumulated depreciation | | | (51,155 | ) | | (51,589 | ) | Property and equipment, net | | | $ | 7,676 |
| | $ | 7,262 |
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Schedule of Acquired Intangible Assets |
Purchased intangible assets, net, consisted of the following (in thousands): | | | | | | | | | | | | | | | | | | | | | | | | | | March 31, 2019 | | December 31, 2018 | | Cost | | Accumulated Amortization | | Net | | Cost | | Accumulated Amortization | | Net | Developed technology | $ | 5,050 |
| | $ | (2,778 | ) | | $ | 2,272 |
| | $ | 5,050 |
| | $ | (2,525 | ) | | $ | 2,525 |
| Patents | 2,936 |
| | (1,821 | ) | | 1,115 |
| | 2,936 |
| | (1,713 | ) | | 1,223 |
| Total | $ | 7,986 |
| | $ | (4,599 | ) | | $ | 3,387 |
| | $ | 7,986 |
| | $ | (4,238 | ) | | $ | 3,748 |
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Schedule of Future Amortization Expense for Purchased Finite-lived Intangible Assets |
Future amortization expense for purchased intangible assets as of March 31, 2019 is as follows (in thousands): | | | | | | Fiscal Year | | | Remainder of 2019 | | $ | 1,082 |
| 2020 | | 1,442 |
| 2021 | | 863 |
| | | $ | 3,387 |
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Schedule of Accrued Liabilities |
Accrued liabilities consisted of the following (in thousands): | | | | | | | | | | March 31, 2019 | | December 31, 2018 | Accrued compensation and benefits | $ | 11,605 |
| | $ | 15,283 |
| Accrued tax liabilities | 5,555 |
| | 4,455 |
| Other | 8,276 |
| | 5,553 |
| Total accrued liabilities | $ | 25,436 |
| | $ | 25,291 |
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Schedule of Deferred Revenue |
Deferred revenue consisted of the following (in thousands): | | | | | | | | | | March 31, 2019 | | December 31, 2018 | Deferred revenue: | | | | Products | $ | 5,529 |
| | $ | 5,216 |
| Services | 93,040 |
| | 92,750 |
| Total deferred revenue | 98,569 |
| | 97,966 |
| Less: current portion | (62,528 | ) | | (63,874 | ) | Non-current portion | $ | 36,041 |
| | $ | 34,092 |
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