Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share (EPS) - Summary of Earnings Per Share (EPS) (Detail)

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Earnings Per Share (EPS) - Summary of Earnings Per Share (EPS) (Detail) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Earnings Per Share [Abstract]        
Net Income (Loss) Attributable to Parent $ 12,566 $ 7,970 $ 15,698 $ 16,843
Basic 121,523,674 119,990,196 120,994,728 119,443,260
Basic earnings per share $ 0.10 $ 0.07 $ 0.13 $ 0.14
Diluted 123,177,753 121,674,591 122,972,014 121,693,781
Diluted earnings per share $ 0.10 $ 0.07 $ 0.13 $ 0.14
Stock Options And Restricted Stock 1,654,079 1,684,395 1,977,286 2,250,521
Stock Options and Restricted Stock, Price per Share $ 0 $ 0.00 $ 0 $ 0.00