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SECURITIES AVAILABLE FOR SALE - Proceeds from Sales and Calls of Securities and Associated Gross Gains and Losses (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Schedule of Available-for-sale Securities [Line Items]        
Net realized gains (losses) on sales of securities available for sale $ 0 $ 10 $ 522 $ 319
Proceeds from sales of securities available for sale 0 118,747 52,245 127,286
Tax expense on sales of securities available for sale 0 0 0 0
Debt Securities
       
Schedule of Available-for-sale Securities [Line Items]        
Gross realized gains on sales of securities available for sale 0 117 560 426
Gross realized losses on sales of securities available for sale 0 (107) (38) (107)
Net realized gains (losses) on sales of securities available for sale $ 0 $ 10 $ 522 $ 319