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ACCOUNTS RECEIVABLE, NET - Schedule of Allowance for Doubtful Accounts and Expected Credit Losses (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Allowance for expected credit losses:      
Balance at Beginning of Period $ 5,581 $ 4,472 $ 4,472
Charged to Expenses 217 $ 342 2,229
Deductions Note 50   1,120
Balance at End of Period $ 5,748   $ 5,581