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EARNINGS PER SHARE - Summary of Numerator and Denominators Used in Computation of Earnings Per Share (Detail) - USD ($)
shares in Thousands, $ in Thousands
 3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Dec. 31, 2016
Numerator:      
Net loss attributable to common stockholders $ (224) $ (7,608)  
Number of shares outstanding, end of period:      
Unvested restricted stock (in shares) (88) (115)  
Effect of weighted average shares outstanding (in shares) (208) (120)  
Basic and diluted weighted average common shares outstanding (in shares) 41,584 40,996  
Antidilutive potentially issuable shares (in shares) 2,683 2,445  
Class A Common Stock      
Number of shares outstanding, end of period:      
Common stock, outstanding shares (in shares) 40,892 40,243 40,572
Class B Common Stock      
Number of shares outstanding, end of period:      
Common stock, outstanding shares (in shares) 988 988 988