Annual report pursuant to Section 13 and 15(d)

Note 19 - Selected Quarterly Financial Data - Unaudited - Unaudited Quarterly Financial Data (Details)

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Note 19 - Selected Quarterly Financial Data - Unaudited - Unaudited Quarterly Financial Data (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
Total revenues $ 151,894 $ 132,221 $ 134,701 $ 116,080 $ 143,422 $ 153,459 $ 149,612 $ 134,213 $ 534,896 $ 580,706 $ 487,096
Operating (loss) income 16,847 35,399 37,379 (30,976) 102,674 57,147 48,467 38,739 58,649 247,027 109,950
Net income $ 9,559 [1] $ 75,899 [1] $ 36,389 [1] $ (47,761) [1] $ 138,844 [1] $ 46,260 [1] $ 36,083 [1] $ 27,640 [1] $ 74,086 $ 248,827 $ 79,682
Basic and diluted earnings per common share (in dollars per share) $ 0.07 $ 0.53 $ 0.25 $ (0.34) $ 0.96 $ 0.32 $ 0.25 $ 0.19 $ 0.52 $ 1.72 $ 0.56
[1] During 2019, we recorded a derivative loss (gain) of $48.9 million, ($1.8) million, ($5.9) million, and $18.7 million in the first, second, third and fourth quarters, respectively. During 2019, we recorded income tax expense (benefit) of $0.2 million, ($11.7) million, ($55.5) million and ($5.9) million in the first, second, third and fourth quarters, respectively. During the fourth quarter of 2018, we recorded a gain on debt transactions of $47.1 million and a derivative gain of $59.7 million. See Note 2, Note 9 and Note 13 for additional information.