Fair Value - Estimated Fair Value of Instruments (Details) - USD ($)
$ in Thousands |
Mar. 31, 2018 |
Dec. 31, 2017 |
| Financial Assets: |
|
|
| Securities - held to maturity |
$ 137,843
|
$ 140,315
|
| FHLB and other stock |
47,020
|
50,498
|
| Financial Liabilities: |
|
|
| Time deposits |
685,600
|
748,250
|
| Fed funds purchased and securities sold under agreements to repurchase |
69,131
|
75,177
|
| Other borrowings |
995,074
|
1,071,742
|
| Trust preferred debentures |
16,734
|
16,691
|
| Level 1 |
|
|
| Financial Assets: |
|
|
| Cash and cash equivalents |
68,102
|
84,303
|
| Securities - held to maturity |
0
|
0
|
| FHLB and other stock |
0
|
0
|
| Accrued interest receivable |
0
|
0
|
| Loans/leases, net |
0
|
0
|
| Financial Liabilities: |
|
|
| Time deposits |
0
|
0
|
| Other deposits |
0
|
0
|
| Fed funds purchased and securities sold under agreements to repurchase |
0
|
0
|
| Other borrowings |
0
|
0
|
| Trust preferred debentures |
0
|
0
|
| Accrued interest payable |
0
|
0
|
| Level 2 |
|
|
| Financial Assets: |
|
|
| Cash and cash equivalents |
0
|
0
|
| Securities - held to maturity |
137,843
|
140,315
|
| FHLB and other stock |
47,020
|
50,498
|
| Accrued interest receivable |
20,855
|
20,122
|
| Loans/leases, net |
5,079
|
4,617
|
| Financial Liabilities: |
|
|
| Time deposits |
679,710
|
744,310
|
| Other deposits |
4,244,304
|
4,089,557
|
| Fed funds purchased and securities sold under agreements to repurchase |
69,130
|
75,177
|
| Other borrowings |
991,386
|
1,069,609
|
| Trust preferred debentures |
21,912
|
22,012
|
| Accrued interest payable |
1,961
|
2,054
|
| Level 3 |
|
|
| Financial Assets: |
|
|
| Cash and cash equivalents |
0
|
0
|
| Securities - held to maturity |
0
|
0
|
| FHLB and other stock |
0
|
0
|
| Accrued interest receivable |
0
|
0
|
| Loans/leases, net |
4,539,333
|
4,551,103
|
| Financial Liabilities: |
|
|
| Time deposits |
0
|
0
|
| Other deposits |
0
|
0
|
| Fed funds purchased and securities sold under agreements to repurchase |
0
|
0
|
| Other borrowings |
0
|
0
|
| Trust preferred debentures |
0
|
0
|
| Accrued interest payable |
0
|
0
|
| Carrying Amount |
|
|
| Financial Assets: |
|
|
| Cash and cash equivalents |
68,102
|
84,303
|
| Securities - held to maturity |
139,131
|
139,216
|
| FHLB and other stock |
47,020
|
50,498
|
| Accrued interest receivable |
20,855
|
20,122
|
| Loans/leases, net |
4,664,634
|
4,632,288
|
| Financial Liabilities: |
|
|
| Time deposits |
685,599
|
748,250
|
| Other deposits |
4,244,304
|
4,089,557
|
| Fed funds purchased and securities sold under agreements to repurchase |
69,130
|
75,177
|
| Other borrowings |
995,074
|
1,071,742
|
| Trust preferred debentures |
16,734
|
16,691
|
| Accrued interest payable |
1,961
|
2,054
|
| Fair Value |
|
|
| Financial Assets: |
|
|
| Cash and cash equivalents |
68,102
|
84,303
|
| Securities - held to maturity |
137,843
|
140,315
|
| FHLB and other stock |
47,020
|
50,498
|
| Accrued interest receivable |
20,855
|
20,122
|
| Loans/leases, net |
4,544,412
|
4,555,720
|
| Financial Liabilities: |
|
|
| Time deposits |
679,710
|
744,310
|
| Other deposits |
4,244,304
|
4,089,557
|
| Fed funds purchased and securities sold under agreements to repurchase |
69,130
|
75,177
|
| Other borrowings |
991,386
|
1,069,609
|
| Trust preferred debentures |
21,912
|
22,012
|
| Accrued interest payable |
$ 1,961
|
$ 2,054
|