XML 79 R69.htm IDEA: XBRL DOCUMENT v3.10.0.1
INVESTMENT SECURITIES - Proceeds from Sales and Calls of Securities and Associated Gross Gains and Losses (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Investments, Debt and Equity Securities [Abstract]        
Gross realized gains on sales and calls of securities available-for-sale $ 278 $ 1,099 $ 5,519 $ 4,455
Gross realized losses on sales and calls of securities available-for-sale 0 0 0 0
Net realized gains on sales and calls of securities available-for-sale 278 1,099 5,519 4,455
Proceeds from sales and calls of securities available-for-sale 325,439 475,586 612,956 886,590
Tax expense on sales and calls of securities available-for-sale $ 81 $ 457 $ 1,618 $ 1,853