OTHER CONSOLIDATED BALANCE SHEET COMPONENTS (NON-CURRENT) - Other Non-Current Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Investment in non-marketable equity securities	$ 110,000	$ 0
Investment in marketable equity securities	0	45,342
Non-current lease prepayments	45,738	0
Restricted cash	12,715	15,836
Other	27,935	13,051
Total	$ 196,388	$ 74,229

Nonmarketable Equity Securities, Noncurrent

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- Definition

Prepaid Rent Noncurrent

+ References

No definition available.

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- Definition

Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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Amount of other miscellaneous assets expected to be realized or consumed after one year or normal operating cycle, if longer.

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No definition available.

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- Definition

Amount of noncurrent assets classified as other.

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-Name Accounting Standards Codification
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-SubTopic 10
-Section S99
-Paragraph 1
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Amount of cash restricted as to withdrawal or usage, classified as noncurrent. 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
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