Annual report pursuant to Section 13 and 15(d)

Components of Calculation of Basic and Diluted Earnings Per Share (Detail)

v3.20.4
Components of Calculation of Basic and Diluted Earnings Per Share (Detail) - USD ($)
shares in Thousands, $ in Thousands
4 Months Ended 12 Months Ended
Dec. 31, 2016
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Net loss attributable to common shareholders $ 224,785 $ (310,557) $ 70,589 $ 224,785
Weighted-average shares – basic 15,059 15,176 15,110 15,059
Effect of dilutive securities [1] 233 0 16  
Weighted average shares outstanding – diluted 15,292 15,176 15,126 15,292
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount   100    
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