Quarterly report pursuant to Section 13 or 15(d)

LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES - Nonaccrual Loans by Loan Class (Details)

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LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES - Nonaccrual Loans by Loan Class (Details) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total nonaccrual loans $ 404,234 $ 371,581
Commercial | Commercial and Industrial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total nonaccrual loans 220,862 175,195
Commercial | Commercial Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total nonaccrual loans 21,300 28,984
Consumer | Automobile    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total nonaccrual loans 4,777 6,564
Consumer | Home Equity    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total nonaccrual loans 69,044 66,278
Consumer | Residential Mortgage    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total nonaccrual loans 88,155 94,560
Consumer | RV and Marine FInance    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total nonaccrual loans 96 0
Consumer | Other Consumer    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total nonaccrual loans $ 0 $ 0