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Commitments, Contingencies and Other Commitments, Contingencies and Other (Table 3) (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Valuation Allowance [Line Items] |  |  |  |
Provision for Doubtful Accounts | $ 8,687 | $ 12,123 | $ 5,470 |
Allowance for Doubtful Accounts Receivable | 11,066 | 10,849 | 616 | $ 144
Allowance for Doubtful Accounts Receivable, Period Increase (Decrease) | 679 | 10,887 | 15,070 |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction | $ 462 | $ 654 | $ 14,598 |

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