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Earnings Per Share - Additional Information (Detail) - USD ($)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Earnings Per Share [Line Items]        
Effective income tax rate       47.00%
Pro forma income tax benefit   $ 0 $ 0 $ 137,000
Common Stock [Member]        
Earnings Per Share [Line Items]        
Conversion of units to shares 45,708,573     45,708,573
Restricted Stock [Member]        
Earnings Per Share [Line Items]        
Conversion of units to shares 8,121,101     8,121,101