XML 52 R42.htm IDEA: XBRL DOCUMENT v2.4.0.8
Computation of Basic and Diluted Net Income Per Share (Detail) (USD $)
In Thousands, except Share data, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Basic net income per share:        
Net income applicable to common stockholders $ 16,236 $ 18,441 $ 36,106 $ 25,447
Undistributed earnings allocated to participating securities (117) (166) (293) (218)
Net income applicable to common stockholders excluding amounts applicable to participating securities 16,119 18,275 35,813 25,229
Weighted average common shares outstanding 68,487 68,357 68,442 68,308
Basic net income per share $ 0.24 $ 0.27 $ 0.52 $ 0.37
Diluted net income per share:        
Net income applicable to common stockholders 16,236 18,441 36,106 25,447
Undistributed earnings allocated to participating securities (117) (166) (293) (218)
Net income applicable to common stockholders excluding amounts applicable to participating securities $ 16,119 $ 18,275 $ 35,813 $ 25,229
Weighted average common shares outstanding 68,487 68,357 68,442 68,308
Dilutive stock options and restricted stock 524 159 458 234
Diluted weighted average common shares outstanding 69,011 68,516 68,900 68,542
Diluted net income per share $ 0.23 $ 0.27 $ 0.52 $ 0.37