Quarterly report pursuant to Section 13 or 15(d)

EARNINGS PER COMMON SHARE (Basic And Diluted Earning Per Share) (Detail)

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EARNINGS PER COMMON SHARE (Basic And Diluted Earning 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
Earnings per common share        
Weighted average common shares outstanding 7,019,069 6,005,242 6,768,678 5,977,590
Net income available to common stockholders $ 10,712 $ 9,202 $ 29,449 $ 25,589
Basic earnings per common share $ 1.53 $ 1.53 $ 4.35 $ 4.28
Weighted average common shares outstanding 7,019,069 6,005,242 6,768,678 5,977,590
Dilutive effects of assumed conversions and exercise of stock options and warrants 302,842 942,187 437,840 954,088
Weighted average common and dilutive potential common shares outstanding 7,321,911 6,947,429 7,206,518 6,931,678
Net income, available to common stockholders 10,712 9,202 29,449 25,589
Effect of interest expense on convertible debt, net of tax and discretionary expenditures related to conversion 0 143 0 426
Net income available to common stockholders, adjusted for effect of debt conversion $ 10,712 $ 9,345 $ 29,449 $ 26,015
Diluted earnings per common share $ 1.46 $ 1.35 $ 4.10 $ 3.75