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Balance Sheet Details | 12 Months Ended
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Dec. 31, 2020
Balance Sheet Related Disclosures [Abstract] |
Balance Sheet Details | Balance Sheet Details Inventories Inventories consisted of the following:
|  | As of December 31, |
(In thousands) |  | 2020 |  | 2019 |
Raw materials |  | $ | 7,945 |  |  | $ | 3,997 |  |
Work in process |  | 650 |  |  | 1,455 |  |
Finished goods |  | 5,871 |  |  | 4,634 |  |
Total |  | $ | 14,466 |  |  | $ | 10,086 |  |
Property, Plant and Equipment, net Property, plant and equipment, net is comprised of the following:
|  | As of December 31,
(In thousands) |  | 2020 |  | 2019
Computer software |  | $ | 49,862 |  |  | $ | 50,453 |
Computer equipment |  | 32,122 |  |  | 36,761 |
Furniture and fixtures |  | 11,100 |  |  | 16,136 |
Leasehold improvements |  | 9,658 |  |  | 10,316 |
Machinery |  | 10,378 |  |  | 10,446 |
Construction in progress |  | 27,250 |  |  | 1,691 |
Property, plant and equipment, gross |  | 140,370 |  |  | 125,803 |
Less accumulated depreciation and amortization |  | (82,677) |  |  | (81,089) |
Property, plant and equipment, net |  | $ | 57,693 |  |  | $ | 44,714 |
Depreciation expense for the years ended December 31, 2020, 2019 and 2018 was $21.2 million, $15.2 million and $10.7 million, respectively. Accumulated Other Comprehensive Gain (Loss) Accumulated other comprehensive gain (loss) is comprised of the following:
|  | As of December 31,
(In thousands) |  | 2020 |  | 2019
Foreign currency translation adjustments |  | $ | 129 |  |  | $ | 105 |
Unrealized loss on available-for-sale securities, net of tax |  | (210) |  |  | (197) |
Total |  | $ | (81) |  |  | $ | (92) |

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