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Earnings Per Share - Calculation of Basic Earnings Per Share (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Basic earnings (loss) per share:        
Net income (loss) available to common stockholders $ 28,099 $ 13,611 $ 42,413 $ 75,479
Basic weighted-average shares of common stock outstanding 360,614 341,272 359,308 339,845
Basic earnings (loss) per share $ 0.08 $ 0.04 $ 0.12 $ 0.22