Annual report pursuant to Section 13 and 15(d)

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

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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, 2019
Dec. 31, 2018
Dec. 31, 2017
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Net loss attributable to common shareholders $ 32,662 $ 70,589 $ 224,785  
Weighted-average shares – basic 14,996 15,110 15,059 14,996
Effect of dilutive securities [1] 67 16 233  
Weighted-average shares – diluted 15,063 15,126 15,292 15,063
[1]
Represents a combination of unvested RSUs and PRSUs that are dilutive with the exception of December 31, 2019 at which time all of our unvested PRSUs were determined to be at a zero percent vesting level due to the relative performance of our common stock.