Balance Sheet Components (Tables)
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12 Months Ended |
Dec. 31, 2017 |
Balance Sheet Related Disclosures [Abstract] |
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Schedule of Inventories |
Inventories consist of the following (in thousands): | | | | | | | | | | December 31, | | 2017 | | 2016 | Raw materials | $ | 12,721 |
| | $ | 9,793 |
| Work in process | 12,157 |
| | 10,773 |
| Finished goods | 6,810 |
| | 6,565 |
| Total inventories | $ | 31,688 |
| | $ | 27,131 |
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Property, Plant and Equipment |
Property, plant and equipment consist of the following (in thousands): | | | | | | | | | | | | | | December 31, | | Generally Used Estimated Useful Life | | 2017 | | 2016 | Clinical and manufacturing equipment | Up to 10 years | | $ | 183,392 |
| | $ | 153,938 |
| Computer hardware | 3 years | | 24,933 |
| | 27,978 |
| Computer software | 3 years | | 54,756 |
| | 59,997 |
| Furniture and fixtures | 5 years | | 16,271 |
| | 10,306 |
| Leasehold improvements | Lease term (1) | | 37,756 |
| | 22,370 |
| Building | 20 years | | 63,887 |
| | 7,272 |
| Land | — | | 17,630 |
| | 3,072 |
| CIP | — | | 85,976 |
| | 25,948 |
| Total | | | 484,601 |
| | 310,881 |
| Less: Accumulated depreciation and amortization and impairment charges | | | (135,808 | ) | | (135,714 | ) | Total property, plant and equipment, net | | | $ | 348,793 |
| | $ | 175,167 |
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(1) Shorter of remaining lease term or estimated useful lives of asset
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Schedule of Accrued Liabilities |
Accrued liabilities consist of the following (in thousands): | | | | | | | | | | December 31, | | 2017 | | 2016 | Accrued payroll and benefits | $ | 103,004 |
| | $ | 79,214 |
| Accrued expenses | 27,318 |
| | 21,811 |
| Accrued income taxes | 12,405 |
| | 4,210 |
| Accrued sales rebate | 11,209 |
| | 10,342 |
| Accrued professional fees | 6,316 |
| | 3,604 |
| Accrued warranty | 5,929 |
| | 3,841 |
| Accrued sales tax and value added tax | 5,503 |
| | 5,032 |
| Other accrued liabilities | 22,514 |
| | 6,278 |
| Total accrued liabilities | $ | 194,198 |
| | $ | 134,332 |
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Warranty accrual |
Accrued warranty as of December 31, 2017 and 2016 consists of the following activity (in thousands): | | | | | Accrued warranty as of December 31, 2015 | $ | 2,638 |
| Charged to cost of net revenues | 4,894 |
| Actual warranty expenditures | (3,691 | ) | Accrued warranty as of December 31, 2016 | 3,841 |
| Charged to cost of net revenues | 7,195 |
| Actual warranty expenditures | (5,107 | ) | Accrued warranty as of December 31, 2017 | $ | 5,929 |
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