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BASIS OF PRESENTATION (Details) customer in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($) segment customer	Dec. 31, 2019 USD ($)
Accounting Policies [Abstract]
Cash received from the sale of certain accounts receivable	$ 15,100
Interest expense	100
Product Warranty Liability [Line Items]
Liability for product warranties	15,680	$ 0
Accrued expenses and other	6,700
Other long-term liabilities	9,000
Restricted cash	$ 13,200
Number of operating segments | segment	1
Number of customers (more than) | customer	1
Number of reportable operating segments | segment	1
Tax payment on certain fixed assets
Product Warranty Liability [Line Items]
Restricted cash	$ 8,400
Restricted short-term bank deposits
Product Warranty Liability [Line Items]
Restricted cash	$ 4,800
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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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.

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Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=98513485&loc=SL98516268-108586

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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-Name Accounting Standards Codification
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Represents the initial fair value recorded for assets received on transfer of financial assets in a securitization, asset-backed financing arrangement, or a similar transfer which transaction is recognized as a sale of the transferred financial assets.

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