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ALLOWANCE FOR DOUBTFUL ACCOUNTS (Tables) | 9 Months Ended
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Sep. 30, 2021
Credit Loss [Abstract] |
Reconciliation of allowance for doubtful accounts | A reconciliation of the beginning and ending balances of the allowance for doubtful accounts is as follows (in thousands):
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2021 |  | 2020 |  | 2021 |  | 2020
Balance, beginning of the period | $ | 1,473 |  |  | $ | 1,756 |  |  | $ | 1,402 |  |  | $ | 1,466 |
Charges to earnings | 678 |  |  | 365 |  |  | 1,823 |  |  | 1,314 |
Write-off of uncollectible accounts receivable | (645) |  |  | (483) |  |  | (1,724) |  |  | (1,152) |
Recoveries collected | — |  |  | — |  |  | 5 |  |  | 10 |
Balance, end of the period | $ | 1,506 |  |  | $ | 1,638 |  |  | $ | 1,506 |  |  | $ | 1,638 |

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- Definition Tabular disclosure of allowance for credit loss on accounts receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration