XML 54 R43.htm IDEA: XBRL DOCUMENT v3.21.2
INVESTMENT SECURITIES (Narrative) (Details)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2021
USD ($)
security
shares
Sep. 30, 2020
USD ($)
Sep. 30, 2021
USD ($)
security
shares
Sep. 30, 2020
USD ($)
Dec. 31, 2020
USD ($)
security
Class of Stock [Line Items]          
Proceeds from sales of investment securities available-for-sale $ 104,500 $ 86,500 $ 279,539 $ 86,508  
Investment securities pledged as collateral $ 489,100   $ 489,100   $ 483,600
Number of investment securities in an unrealized loss position | security 130   130   37
Gross realized gain from sale of available for sale investment securities $ 1,100 300 $ 3,300 300  
Gross realized loss from sale of available for sale investment securities $ (1,000) $ (600) $ (3,200) $ (600)  
Common Class B | Visa          
Class of Stock [Line Items]          
Shares owned (in shares) | shares 34,631   34,631