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REVENUE RECOGNITION AND RECEIVABLES - Allowance for Credit Losses Rollforward - (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
REVENUE RECOGNITION AND RECEIVABLES    
Beginning Balance $ 13,885 $ 12,121
Current period provision for expected losses 1,913 1,122
Write-offs charged against the allowance (862) (354)
Recoveries collected 108 124
Ending Balance $ 15,044 $ 13,013