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Income (Loss) Per Share - Summary of Computation of Basic and Diluted Income (Loss) Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ 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
Earnings Per Share [Abstract]                      
Net income (loss) $ (430,743) $ (52,000) $ (140,611) $ 157,749 $ 304 $ 73,297 $ 94,764 $ (109,636) $ (465,605) $ 58,729 $ 221,540
Weighted average common shares outstanding — basic 75,199 71,286 65,807 58,240 54,203 54,200 54,178 54,156 67,664 54,185 46,058
Dilutive effect of securities                   228 3
Weighted average common shares outstanding — diluted 75,199 71,286 65,807 58,572 54,559 54,430 54,451 54,156 67,664 54,413 46,061
Basic $ (5.73) $ (0.73) $ (2.14) $ 2.71 $ 0.01 $ 1.35 $ 1.75 $ (2.02) $ (6.88) $ 1.08 $ 4.81
Diluted $ (5.73) $ (0.73) $ (2.14) $ 2.69 $ 0.01 $ 1.35 $ 1.74 $ (2.02) $ (6.88) $ 1.08 $ 4.81
Anti-dilutive potentially issuable securities excluded from diluted common shares                 5,019 4,220 3,538