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ORGANIZATION AND DESCRIPTION OF THE BUSINESS AND FINANCIAL STATEMENT PRESENTATION (Other Accounting Pronouncements) (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Jan. 01, 2018 | Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Adopted Accounting Pronouncements |  |  |  |  |
Decrease in operating expenses |  | $ 770,103 | $ 717,538 | $ 2,247,573 | $ 2,073,127
Increase in other cost |  | 714 | 1,314 | 4,038 | 3,548
Net income |  | $ 40,776 | 14,788 | 51,963 | 23,158
ASC Topic 715, Compensation – Retirement Benefits | Adjustment |  |  |  |  |
Adopted Accounting Pronouncements |  |  |  |  |
Decrease in operating expenses |  |  | (2,400) |  | (5,800)
Increase in other cost |  |  | 2,400 |  | 5,800
Net income |  |  | $ 0 |  | $ 0
EPS (in dollars per share) |  |  | $ 0 |  | $ 0
Accumulated Other Comprehensive Loss | ASC Topic 220, Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income |  |  |  |  |
Adopted Accounting Pronouncements |  |  |  |  |
Reclassification from AOCI to Retained earnings tax effect | $ (3,600) |  |  |  |
Retained Earnings |  |  |  |  |
Adopted Accounting Pronouncements |  |  |  |  |
Net income |  |  |  | $ 51,963 |
Retained Earnings | ASC Topic 220, Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income |  |  |  |  |
Adopted Accounting Pronouncements |  |  |  |  |
Reclassification from AOCI to Retained earnings tax effect | $ 3,600 |  |  |  |

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