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PREPAID AND OTHER CURRENT ASSETS (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]    
Insurance receivable $ 39,000 $ 0
Prepaid expenses 13,370 12,936
Other current assets 9,081 13,816
Total $ 61,451 $ 26,752