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v3.20.2

BASIS OF PRESENTATION (Details) customer in Thousands, $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2020 USD ($) customer | Sep. 30, 2020 USD ($) segment customer | Dec. 31, 2019 USD ($)
Product Warranty Liability [Line Items] |  |  |
Number of customers (more than) | customer | 1 | 1 |
Cash received from the sale of certain accounts receivable | $ 35,300 | $ 81,100 |
Interest expense | 300 | 700 |
Liability for product warranties | 15,214 | 15,214 | $ 0
Accrued expenses and other | 6,700 | 6,700 |
Other long-term liabilities | 8,500 | 8,500 |
Restricted cash, current | 7,198 | $ 7,198 | $ 0
Number of operating segments | segment |  | 1 |
Tax payment on certain fixed assets |  |  |
Product Warranty Liability [Line Items] |  |  |
Restricted cash | 4,300 | $ 4,300 |
Restricted short-term bank deposits |  |  |
Product Warranty Liability [Line Items] |  |  |
Restricted cash | $ 2,900 | $ 2,900 |
Minimum |  |  |
Product Warranty Liability [Line Items] |  |  |
Product warranty period |  | 1 year |
Maximum |  |  |
Product Warranty Liability [Line Items] |  |  |
Product warranty period |  | 3 years |

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- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8672-108599 + Details
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