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Accounts Receivable (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019 | Dec. 31, 2019
Accounts Receivable Additional Disclosures [Abstract] |  |  |  |  |
Allowance doubtful accounts, receivables | $ 1,393 |  | $ 1,393 |  | $ 1,100
Reserve for (income) from uncollectable accounts | $ 198 | $ 4 | $ 362 | $ 104 |

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