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EARNINGS PER COMMON SHARE - Calculations of Earnings Per Common Share (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Net Income (Loss):        
Net income $ 36,323 $ (10,752) $ 100,503 $ 42,787
Dividends on preferred stock (669) (669) (2,007) (2,007)
Net income (loss) attributable to common stockholders $ 35,654 $ (11,421) $ 98,496 $ 40,780
Weighted-Average Shares:        
Basic weighted-average common shares outstanding 216,149 214,187 215,516 213,812
Average potential common shares 626 0 1,068 2,322
Diluted weighted-average number of common shares outstanding 216,775 214,187 216,584 216,134
Income (loss) per common share:        
Basic $ 0.16 $ (0.05) $ 0.46 $ 0.19
Diluted $ 0.16 $ (0.05) $ 0.45 $ 0.19