XML 84 R69.htm IDEA: XBRL DOCUMENT v3.20.4
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Premises and Equipment (Details)
12 Months Ended
Dec. 31, 2020
Buildings  
Property, Plant and Equipment [Line Items]  
Estimated useful life 40 years
Leases | Minimum  
Property, Plant and Equipment [Line Items]  
Estimated useful life 3 years
Leases | Maximum  
Property, Plant and Equipment [Line Items]  
Estimated useful life 7 years