FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Narrative (Details) - USD ($) |
3 Months Ended | |
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Sep. 30, 2021 |
Dec. 31, 2020 |
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Fair Value Disclosures [Abstract] | ||
Marketable debt securities | $ 0 | $ 49,995,000 |
Impairment charges on ROU assets | $ 9,600,000 |
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- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Amount of loss from impairment of right-of-use asset from operating lease. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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