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
Mar. 31, 2013
Mar. 31, 2012
Earnings per common share    
Weighted average common shares outstanding 6,341,605 5,946,006
Net income available to common stockholders $ 9,151 $ 8,156
Basic earnings per common share $ 1.44 $ 1.37
Weighted average common and dilutive potential common shares outstanding 7,076,505 6,913,869
Dilutive effects of assumed conversions and exercise of stock options and warrants 734,900 967,863
Net income, available to common stockholders 9,151 8,156
Effect of interest expense on convertible debt, net of tax and discretionary expenditures related to conversion 132 142
Net income available to common stockholders, adjusted for effect of debt conversion $ 9,283 $ 8,298
Diluted earnings per common share $ 1.31 $ 1.20