Quarterly report pursuant to Section 13 or 15(d)

LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES - TDRs (Details)

v3.7.0.1
LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES - TDRs (Details)
3 Months Ended
Mar. 31, 2017
USD ($)
contract
Mar. 31, 2016
USD ($)
contract
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts | contract 1,428 1,434
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 180,401,000 $ 194,509,000
New Troubled Debt Restructuring, Financial effects of modification $ 1,585,000 $ 629,000
Commercial | Interest rate reduction    
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts 1 1
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 19,000 $ 17,000
New Troubled Debt Restructuring, Financial effects of modification (6,000) $ 1,000
Commercial | Amortization or maturity date change    
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts | contract   184
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance 112,425,000 $ 122,658,000
New Troubled Debt Restructuring, Financial effects of modification $ 1,002,000 $ (572,000)
Commercial | Other    
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts | contract 3 8
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 160,000 $ 858,000
New Troubled Debt Restructuring, Financial effects of modification $ 27,000 $ 4,000
Commercial | Commercial and Industrial    
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts | contract 240 193
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 112,604,000 $ 123,533,000
New Troubled Debt Restructuring, Financial effects of modification $ 1,023,000 $ (567,000)
Commercial | Commercial and Industrial | Amortization or maturity date change    
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts | contract 236  
Commercial | Commercial Real Estate    
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts | contract 24 26
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 31,263,000 $ 34,058,000
New Troubled Debt Restructuring, Financial effects of modification $ 388,000 $ 543,000
Commercial | Commercial Real Estate | Interest rate reduction    
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts | contract 0 0
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 0 $ 0
New Troubled Debt Restructuring, Financial effects of modification $ 0 $ 0
Commercial | Commercial Real Estate | Amortization or maturity date change    
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts | contract 24 24
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 31,263,000 $ 33,795,000
New Troubled Debt Restructuring, Financial effects of modification $ 388,000 $ 559,000
Commercial | Commercial Real Estate | Other    
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts | contract 0 2
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 0 $ 263,000
New Troubled Debt Restructuring, Financial effects of modification $ 0 $ (16,000)
Consumer | Automobile    
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts | contract 731 742
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 6,301,000 $ 6,505,000
New Troubled Debt Restructuring, Financial effects of modification $ (145,000) $ (337,000)
Consumer | Automobile | Interest rate reduction    
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts | contract 14 4
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 178,000 $ 42,000
New Troubled Debt Restructuring, Financial effects of modification $ (5,000) $ (2,000)
Consumer | Automobile | Amortization or maturity date change    
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts | contract 477 421
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 4,301,000 $ 3,901,000
New Troubled Debt Restructuring, Financial effects of modification $ (111,000) $ (220,000)
Consumer | Automobile | Chapter 7 bankruptcy    
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts | contract 240 317
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 1,822,000 $ 2,562,000
New Troubled Debt Restructuring, Financial effects of modification $ (29,000) $ (115,000)
Consumer | Automobile | Other    
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts | contract 0 0
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 0 $ 0
New Troubled Debt Restructuring, Financial effects of modification $ 0 $ 0
Consumer | Home Equity    
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts | contract 259 348
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 13,406,000 $ 16,871,000
New Troubled Debt Restructuring, Financial effects of modification $ (45,000) $ 482,000
Consumer | Home Equity | Interest rate reduction    
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts | contract 8 20
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 562,000 $ 1,384,000
New Troubled Debt Restructuring, Financial effects of modification $ (7,000) $ (67,000)
Consumer | Home Equity | Amortization or maturity date change    
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts | contract 106 229
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 5,496,000 $ 11,890,000
New Troubled Debt Restructuring, Financial effects of modification $ 674,000 $ 1,282,000
Consumer | Home Equity | Chapter 7 bankruptcy    
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts | contract 87 99
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 3,619,000 $ 3,597,000
New Troubled Debt Restructuring, Financial effects of modification $ (1,038,000) $ (733,000)
Consumer | Home Equity | Other    
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts | contract 58 0
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 3,729,000 $ 0
New Troubled Debt Restructuring, Financial effects of modification $ (326,000) $ 0
Consumer | Residential Mortgage    
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts | contract 141 114
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 15,792,000 $ 12,921,000
New Troubled Debt Restructuring, Financial effects of modification $ 389,000 $ 539,000
Consumer | Residential Mortgage | Interest rate reduction    
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts | contract 2 5
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 110,000 $ 657,000
New Troubled Debt Restructuring, Financial effects of modification $ 9,000 $ 32,000
Consumer | Residential Mortgage | Amortization or maturity date change    
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts | contract 99 92
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 11,071,000 $ 10,759,000
New Troubled Debt Restructuring, Financial effects of modification $ 258,000 $ 577,000
Consumer | Residential Mortgage | Chapter 7 bankruptcy    
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts | contract 24 17
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 2,691,000 $ 1,505,000
New Troubled Debt Restructuring, Financial effects of modification $ 136,000 $ (70,000)
Consumer | Residential Mortgage | Other    
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts | contract 16 0
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 1,920,000 $ 0
New Troubled Debt Restructuring, Financial effects of modification $ 14,000 $ 0
Consumer | RV and Marine FInance    
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts | contract 29 0
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 686,000 $ 0
New Troubled Debt Restructuring, Financial effects of modification $ (16,000) $ 0
Consumer | RV and Marine FInance | Interest rate reduction    
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts | contract 0 0
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 0 $ 0
New Troubled Debt Restructuring, Financial effects of modification $ 0 $ 0
Consumer | RV and Marine FInance | Amortization or maturity date change    
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts | contract 14 0
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 476,000 $ 0
New Troubled Debt Restructuring, Financial effects of modification $ (12,000) $ 0
Consumer | RV and Marine FInance | Chapter 7 bankruptcy    
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts | contract 15 0
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 210,000 $ 0
New Troubled Debt Restructuring, Financial effects of modification $ (4,000) $ 0
Consumer | RV and Marine FInance | Other    
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts | contract 0 0
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 0 $ 0
New Troubled Debt Restructuring, Financial effects of modification $ 0 $ 0
Consumer | Other Consumer    
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts | contract 4 11
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 349,000 $ 621,000
New Troubled Debt Restructuring, Financial effects of modification $ (9,000) $ (31,000)
Consumer | Other Consumer | Interest rate reduction    
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts | contract 1 0
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 78,000 $ 0
New Troubled Debt Restructuring, Financial effects of modification $ (2,000) $ 0
Consumer | Other Consumer | Amortization or maturity date change    
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts | contract 2 4
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 267,000 $ 555,000
New Troubled Debt Restructuring, Financial effects of modification $ (7,000) $ (24,000)
Consumer | Other Consumer | Chapter 7 bankruptcy    
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts | contract 1 7
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 4,000 $ 66,000
New Troubled Debt Restructuring, Financial effects of modification $ 0 $ (7,000)
Consumer | Other Consumer | Other    
Financing Receivable, Modifications [Line Items]    
New Troubled Debt Restructuring, Number of Contracts | contract 0 0
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 0 $ 0
New Troubled Debt Restructuring, Financial effects of modification $ 0 $ 0