Annual report pursuant to Section 13 and 15(d)

SIGNIFICANT ACCOUNTING POLICIES - Loans and Leases (Details)

v3.24.0.1
SIGNIFICANT ACCOUNTING POLICIES - Loans and Leases (Details)
3 Months Ended 12 Months Ended
Jun. 30, 2023
business_unit
Dec. 31, 2023
segment
Financing Receivable, Past Due [Line Items]    
Number of reportable segments 2 2
Commercial portfolio    
Financing Receivable, Past Due [Line Items]    
Threshold period past due for nonperforming status   90 days
Threshold past due for write-off   90 days
Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Threshold period past due for nonperforming status   90 days
Threshold past due for write-off   90 days
Home Equity | First-lien home equity loan    
Financing Receivable, Past Due [Line Items]    
Threshold period past due for nonperforming status   150 days
Threshold past due for write-off   150 days
Home Equity | Junior-lien home equity loan    
Financing Receivable, Past Due [Line Items]    
Threshold past due for write-off   120 days
Automobile    
Financing Receivable, Past Due [Line Items]    
Threshold past due for write-off   120 days
RV and marine    
Financing Receivable, Past Due [Line Items]    
Threshold past due for write-off   120 days
Residential Mortgage    
Financing Receivable, Past Due [Line Items]    
Threshold period past due for nonperforming status   150 days
Threshold past due for write-off   150 days
Other consumer    
Financing Receivable, Past Due [Line Items]    
Threshold past due for write-off   120 days
Consumer portfolio    
Financing Receivable, Past Due [Line Items]    
Threshold past due for write-off   120 days