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Balance Sheet Details | 12 Months Ended
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Dec. 31, 2019
Balance Sheet Detail [Abstract] |
Balance Sheet Details |
9. | Balance Sheet Details:
Inventories Inventories are comprised of the following:
|  | December 31, |
|  | 2019 |  |  | 2018 |
Materials |  | $ | 108,492 |  |  | $ | 61,025 |
Work-in-process |  |  | 42,694 |  |  |  | 21,910 |
Finished goods |  |  | 24,948 |  |  |  | 13,885 |
Total inventories |  | $ | 176,134 |  |  | $ | 96,820 |
Property, Plant and Equipment Property, plant and equipment, net, is comprised of the following:
|  | December 31, |
|  | 2019 |  |  | 2018 |
Land and building |  | $ | 47,222 |  |  | $ | 2,584 |
Machinery and equipment |  |  | 56,504 |  |  |  | 29,097 |
Furniture and fixtures |  |  | 3,968 |  |  |  | 3,226 |
Computer equipment and software |  |  | 15,770 |  |  |  | 7,906 |
Leasehold improvements |  |  | 13,069 |  |  |  | 9,448 |
|  |  | 136,533 |  |  |  | 52,261 |
Accumulated depreciation |  |  | (38,113 | ) |  |  | (33,387 | )
Total property, plant and equipment, net |  | $ | 98,420 |  |  | $ | 18,874 |
Depreciation expense amounted to $5,965, $4,848 and $3,990 for the years ended December 31, 2019, 2018 and 2017, respectively. Other assets Other assets is comprised of the following:
|  | December 31, |
|  | 2019 |  |  | 2018 |
Convertible notes receivable, net of allowance of $2,000 |  | $ | 3,000 |  |  | $ | 5,000 |
Operating lease right-of-use assets |  |  | 23,588 |  |  |  | — |
Other |  |  | 1,351 |  |  |  | 506 |
Total other assets |  | $ | 27,939 |  |  | $ | 5,506 |
Accrued liabilities Accrued liabilities is comprised of the following:
|  | December 31, |
|  | 2019 |  |  | 2018 |
Payroll and related expenses |  | $ | 19,365 |  |  | $ | 10,648 |
Warranty |  |  | 6,348 |  |  |  | 2,441 |
Other |  |  | 491 |  |  |  | 611 |
Total accrued liabilities |  | $ | 26,204 |  |  | $ | 13,700 |
Other current liabilities Other current liabilities is comprised of the following:
|  | December 31, |
|  | 2019 |  |  | 2018 |
Contingent consideration - acquisitions |  | $ | 569 |  |  | $ | 1,422 |
Income tax payable |  |  | 2,783 |  |  |  | — |
Current operating lease obligations |  |  | 4,906 |  |  |  | — |
Customer deposits |  |  | 1,994 |  |  |  | 1,135 |
Accrued inventory |  |  | 1,614 |  |  |  | 1,103 |
Accrued professional fees |  |  | 1,520 |  |  |  | 532 |
Other |  |  | 5,786 |  |  |  | 3,351 |
Total other current liabilities |  | $ | 19,172 |  |  | $ | 7,543 |
Other non-current liabilities Other non-current liabilities is comprised of the following:
|  | December 31, |
|  | 2019 |  |  | 2018 |
Unrecognized tax benefits (including interest) |  | $ | 6,384 |  |  | $ | 5,409 |
Non-current operating lease obligations |  |  | 19,970 |  |  |  | — |
Contingent consideration - acquisitions |  |  | — |  |  |  | 638 |
Deferred revenue |  |  | 2,464 |  |  |  | 1,314 |
Other |  |  | 2,953 |  |  |  | 3,800 |
Total non-current liabilities |  | $ | 31,771 |  |  | $ | 11,161 |

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