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QUARTERLY DATA (UNAUDITED) (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
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
Quarterly Financial Information Disclosure [Abstract] |  |  |  |  |  |  |  |  |  |  |
Total revenues | $ 871,005 | $ 891,668 | $ 868,678 | $ 780,839 | $ 858,204 | $ 843,181 | $ 849,140 | $ 749,778 | $ 3,412,190 | $ 3,300,303 | $ 2,944,978
Total cost of revenues | 615,768 | 612,754 | 594,933 | 564,364 | 594,857 | 580,685 | 583,584 | 546,425 | 2,387,819 | 2,305,551 | 2,062,673
Income from operations | 52,307 | 80,367 | 73,048 | 23,734 | 41,485 | 65,745 | 64,353 | 10,991 | 229,456 | 182,574 | 127,775
Other income (expense), net | 905 | (427) | (564) | 2,983 | (4,061) | (996) | 846 | (299) | 2,897 | (4,510) | (6,119)
Net income | $ 24,151 | $ 36,369 | $ 36,244 | $ 976 | $ 16,431 | $ 31,089 | $ 30,747 | $ (12,631) | $ 97,740 | $ 65,636 | $ 100,739
Basic (loss) earnings per share (in dollars per share) | $ 0.43 | $ 0.65 | $ 0.65 | $ 0.02 | $ 0.29 | $ 0.55 | $ 0.55 | $ (0.22) | $ 1.75 | $ 1.17 | $ 1.77
Diluted (loss) earnings per share (in dollars per share) | $ 0.43 | $ 0.65 | $ 0.65 | $ 0.02 | $ 0.29 | $ 0.55 | $ 0.54 | $ (0.22) | $ 1.74 | $ 1.16 | $ 1.76
Loss on early extinguishment of debt |  | $ 6,100 |  |  |  | $ 2,500 |  |  | $ 6,131 | $ 2,488 | $ 7,891

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