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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
Mar. 31, 2020
Mar. 31, 2019
Basic earnings (loss) per share:    
Net income (loss) available to common stockholders $ 14,314 $ 61,868
Basic weighted-average shares of common stock outstanding 358,001 338,403
Basic earnings (loss) per share $ 0.04 $ 0.18