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IMPACT OF HURRICANES IRMA AND MARIA (Details) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Feb. 28, 2018 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
IMPACT OF THE HURRICANES IRMA AND MARIA |  |  |  |  |  |  |  |  |  |  |  |
Pre-tax loss |  | $ (4,307) | $ 6,678 | $ 1,753 | $ 1,948 | $ 11,336 | $ 27,920 | $ 12,868 | $ 1,618 | $ 6,072 | $ 53,742 | $ 47,553
Loss on damaged assets from Hurricanes |  |  |  |  |  |  |  |  |  |  |  | 35,443
Insurance proceeds |  |  |  |  |  |  |  |  |  |  | 34,606 |
Payment for network repairs and resiliency enhancements |  |  |  |  |  |  |  |  |  | 123 | 80,152 | 8,585
HURRICANES IRMA AND MARIA |  |  |  |  |  |  |  |  |  |  |  |
IMPACT OF THE HURRICANES IRMA AND MARIA |  |  |  |  |  |  |  |  |  |  |  |
Pre-tax loss |  |  |  |  |  |  |  |  |  |  |  | (4,000)
Loss on damaged assets from Hurricanes |  |  |  |  |  |  |  |  |  |  |  | 35,400
Insurance proceeds | $ 34,600 |  |  |  |  |  |  |  |  |  |  |
Additional operating expenses |  |  |  |  |  |  |  |  |  |  |  | 3,200
Payment for network repairs and resiliency enhancements |  |  |  |  |  |  |  |  |  | $ 100 | 80,200 | $ 8,600
HURRICANES IRMA AND MARIA | Universal Service Fund programs |  |  |  |  |  |  |  |  |  |  |  |
IMPACT OF THE HURRICANES IRMA AND MARIA |  |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  |  |  | $ 15,500 |

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