v3.3.0.814
Earnings Per Share - Computation of Basic and Diluted Net Earnings (Loss) Per Share (Detail) - USD ($)
shares in Thousands, $ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Numerator:        
Net income (loss) $ 14,511 $ 11,063 $ 36,652 $ 32,070
Denominator:        
Denominator for basic earnings per share – weighted average shares (in shares) 20,716 20,718 20,726 20,712
Effect of dilutive securities:        
Employee stock options (in shares) 58 101 71 119
Denominator for diluted earnings per share - weighted average shares (in shares) 20,774 20,819 20,797 20,831