Annual report pursuant to Section 13 and 15(d)

Note 18 - Selected Quarterly Financial Data - Unaudited - Unaudited Quarterly Financial Data (Details)

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Note 18 - Selected Quarterly Financial Data - Unaudited - Unaudited Quarterly Financial Data (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Total revenues $ 94,748 $ 72,517 $ 55,241 $ 124,128 $ 151,894 $ 132,221 $ 134,701 $ 116,080 $ 346,634 $ 534,896 $ 580,706
Operating (loss) income 349 (19,510) (28,041) 71,811 16,847 35,399 37,379 (30,976) 24,609 58,649 247,027
Net income $ (8,947) [1] $ (13,339) [1] $ (5,904) [1] $ 65,980 [1] $ 9,559 [1] $ 75,899 [1] $ 36,389 [1] $ (47,761) [1] $ 37,790 $ 74,086 $ 248,827
Basic and diluted earnings per common share (in dollars per share) $ (0.06) [2] $ (0.09) [2] $ (0.04) [2] $ 0.46 [2] $ 0.07 [2] $ 0.53 [2] $ 0.25 [2] $ (0.34) [2] $ 0.26 $ 0.52 $ 1.72
[1] During 2020, we recorded a derivative (gain) loss of $(61.9) million, 15.4 million, 11.2 million, and $11.5 million in the first, second, third and fourth quarters, respectively. During 2020, we recorded gain on debt transactions of $47.5 million. During 2020, we recorded income tax expense (benefit) of $6.5 million, ($8.7) million, ($21.1) million and ($6.9) million in the first, second, third and fourth quarters, respectively. 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 ($8.2) million in the first, second, third and fourth quarters, respectively.
[2] The sum of the individual quarterly earnings (loss) per common share may not agree with the yearly amount due to each quarterly calculation is based on income for that quarter and the weighted average common shares outstanding for that quarter.