XML 89 R77.htm IDEA: XBRL DOCUMENT v3.20.4
Other Intangible Assets and Goodwill - Narrative (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Finite-Lived Intangible Assets      
Accumulated impairment charge $ 40,159 $ 40,159  
Core Deposits Intangibles      
Finite-Lived Intangible Assets      
Core deposit intangibles $ 2,593 $ 22,529 $ 41,328