XML 70 R60.htm IDEA: XBRL DOCUMENT v3.20.2
GOODWILL, OTHER INTANGIBLE ASSETS AND MORTGAGE SERVICING RIGHTS (Estimated Annual Amortization Expense) (Details) - Core Deposit Intangibles [Member] - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]      
Remainder of 2017 $ 1,865    
2018 6,571    
2019 5,317    
2020 3,814    
2021 2,659    
Thereafter 3,065    
Finite lived assets, net $ 23,291 $ 29,158 $ 32,699