Annual report pursuant to Section 13 and 15(d)

PARENT COMPANY FINANCIAL INFORMATION (Statement Of Income) (Detail)

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PARENT COMPANY FINANCIAL INFORMATION (Statement Of Income) (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 12 Months Ended
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Income:                      
Other income                 $ 878 $ 744 $ 650
Net income                 41,617 34,445 23,438
Dividends on preferred stock                 416 400 200
Net income available to common stockholders 11,752 10,712 9,586 9,151 8,457 9,202 8,231 8,155 41,201 34,045 23,238
Parent Company [Member]
                      
Income:                      
Dividends received from subsidiary                 4,750 0 800
Other income                 1 41 43
Total income                 4,751 41 843
Other operating expenses                 1,147 1,594 1,660
Total expenses                 1,147 1,594 1,660
Equity in undistributed earnings of subsidiary                 38,013 35,998 24,255
Net income                 41,617 34,445 23,438
Dividends on preferred stock                 400 400 200
Net income available to common stockholders                 $ 41,217 $ 34,045 $ 23,238