Note 5 - Loans and Leases - Carrying Value of all Portfolio Loans and Leases by Portfolio Segment Based on Credit Risk Profile by Payment Activity (Details) - USD ($)
$ in Thousands |
Dec. 31, 2016 |
Dec. 13, 2016 |
Dec. 31, 2015 |
| Financing Receivable, Allowance for Credit Losses |
$ 2,535,425
|
$ 2,535,425
|
$ 2,268,988
|
| Originated Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
2,240,987
|
|
1,883,869
|
| Acquired Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
294,438
|
|
385,119
|
| Real Estate Portfolio Segment [Member] | Residential Mortgage Loan [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
413,540
|
413,540
|
406,404
|
| Real Estate Portfolio Segment [Member] | Residential Mortgage Loan [Member] | Originated Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
342,268
|
|
316,487
|
| Real Estate Portfolio Segment [Member] | Residential Mortgage Loan [Member] | Acquired Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
71,272
|
|
89,917
|
| Real Estate Portfolio Segment [Member] | Home Equity Loan [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
207,999
|
207,999
|
209,473
|
| Real Estate Portfolio Segment [Member] | Home Equity Loan [Member] | Originated Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
178,450
|
|
171,189
|
| Real Estate Portfolio Segment [Member] | Home Equity Loan [Member] | Acquired Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
29,549
|
|
38,284
|
| Consumer Portfolio Segment [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
25,341
|
25,341
|
22,129
|
| Consumer Portfolio Segment [Member] | Originated Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
25,200
|
|
21,934
|
| Consumer Portfolio Segment [Member] | Acquired Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
141
|
|
195
|
| Finance Leases Portfolio Segment [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
55,892
|
$ 55,892
|
51,787
|
| Finance Leases Portfolio Segment [Member] | Originated Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
55,892
|
|
51,787
|
| Finance Leases Portfolio Segment [Member] | Acquired Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
|
|
|
| Performing Financial Instruments [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
697,686
|
|
684,545
|
| Performing Financial Instruments [Member] | Originated Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
597,849
|
|
557,636
|
| Performing Financial Instruments [Member] | Acquired Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
99,837
|
|
126,909
|
| Performing Financial Instruments [Member] | Real Estate Portfolio Segment [Member] | Residential Mortgage Loan [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
410,882
|
|
403,192
|
| Performing Financial Instruments [Member] | Real Estate Portfolio Segment [Member] | Residential Mortgage Loan [Member] | Originated Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
340,615
|
|
314,523
|
| Performing Financial Instruments [Member] | Real Estate Portfolio Segment [Member] | Residential Mortgage Loan [Member] | Acquired Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
70,267
|
|
88,669
|
| Performing Financial Instruments [Member] | Real Estate Portfolio Segment [Member] | Home Equity Loan [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
205,710
|
|
207,446
|
| Performing Financial Instruments [Member] | Real Estate Portfolio Segment [Member] | Home Equity Loan [Member] | Originated Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
176,281
|
|
169,401
|
| Performing Financial Instruments [Member] | Real Estate Portfolio Segment [Member] | Home Equity Loan [Member] | Acquired Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
29,429
|
|
38,045
|
| Performing Financial Instruments [Member] | Consumer Portfolio Segment [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
25,339
|
|
22,129
|
| Performing Financial Instruments [Member] | Consumer Portfolio Segment [Member] | Originated Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
25,198
|
|
21,934
|
| Performing Financial Instruments [Member] | Consumer Portfolio Segment [Member] | Acquired Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
141
|
|
195
|
| Performing Financial Instruments [Member] | Finance Leases Portfolio Segment [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
55,755
|
|
51,778
|
| Performing Financial Instruments [Member] | Finance Leases Portfolio Segment [Member] | Originated Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
55,755
|
|
51,778
|
| Nonperforming Financial Instruments [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
5,086
|
|
5,248
|
| Nonperforming Financial Instruments [Member] | Originated Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
3,961
|
|
3,761
|
| Nonperforming Financial Instruments [Member] | Acquired Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
1,125
|
|
1,487
|
| Nonperforming Financial Instruments [Member] | Real Estate Portfolio Segment [Member] | Residential Mortgage Loan [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
2,658
|
|
3,212
|
| Nonperforming Financial Instruments [Member] | Real Estate Portfolio Segment [Member] | Residential Mortgage Loan [Member] | Originated Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
1,653
|
|
1,964
|
| Nonperforming Financial Instruments [Member] | Real Estate Portfolio Segment [Member] | Residential Mortgage Loan [Member] | Acquired Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
1,005
|
|
1,248
|
| Nonperforming Financial Instruments [Member] | Real Estate Portfolio Segment [Member] | Home Equity Loan [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
2,289
|
|
2,027
|
| Nonperforming Financial Instruments [Member] | Real Estate Portfolio Segment [Member] | Home Equity Loan [Member] | Originated Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
2,169
|
|
1,788
|
| Nonperforming Financial Instruments [Member] | Real Estate Portfolio Segment [Member] | Home Equity Loan [Member] | Acquired Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
120
|
|
239
|
| Nonperforming Financial Instruments [Member] | Consumer Portfolio Segment [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
2
|
|
|
| Nonperforming Financial Instruments [Member] | Consumer Portfolio Segment [Member] | Originated Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
2
|
|
|
| Nonperforming Financial Instruments [Member] | Consumer Portfolio Segment [Member] | Acquired Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
|
|
|
| Nonperforming Financial Instruments [Member] | Finance Leases Portfolio Segment [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
137
|
|
9
|
| Nonperforming Financial Instruments [Member] | Finance Leases Portfolio Segment [Member] | Originated Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
137
|
|
9
|
| Performing and Non-performing [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
702,772
|
|
689,793
|
| Performing and Non-performing [Member] | Originated Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
601,810
|
|
561,397
|
| Performing and Non-performing [Member] | Acquired Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
100,962
|
|
128,396
|
| Performing and Non-performing [Member] | Real Estate Portfolio Segment [Member] | Residential Mortgage Loan [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
413,540
|
|
406,404
|
| Performing and Non-performing [Member] | Real Estate Portfolio Segment [Member] | Residential Mortgage Loan [Member] | Originated Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
342,268
|
|
316,487
|
| Performing and Non-performing [Member] | Real Estate Portfolio Segment [Member] | Residential Mortgage Loan [Member] | Acquired Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
71,272
|
|
89,917
|
| Performing and Non-performing [Member] | Real Estate Portfolio Segment [Member] | Home Equity Loan [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
207,999
|
|
209,473
|
| Performing and Non-performing [Member] | Real Estate Portfolio Segment [Member] | Home Equity Loan [Member] | Originated Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
178,450
|
|
171,189
|
| Performing and Non-performing [Member] | Real Estate Portfolio Segment [Member] | Home Equity Loan [Member] | Acquired Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
29,549
|
|
38,284
|
| Performing and Non-performing [Member] | Consumer Portfolio Segment [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
25,341
|
|
22,129
|
| Performing and Non-performing [Member] | Consumer Portfolio Segment [Member] | Originated Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
25,200
|
|
21,934
|
| Performing and Non-performing [Member] | Consumer Portfolio Segment [Member] | Acquired Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
141
|
|
195
|
| Performing and Non-performing [Member] | Finance Leases Portfolio Segment [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
55,892
|
|
51,787
|
| Performing and Non-performing [Member] | Finance Leases Portfolio Segment [Member] | Originated Loans [Member] |
|
|
|
| Financing Receivable, Allowance for Credit Losses |
$ 55,892
|
|
$ 51,787
|