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v3.3.1.900

Borrowings (Narrative) (Details) - USD ($) |  | 12 Months Ended |  |
--- | --- | --- | --- | ---
Apr. 15, 2015 | Dec. 31, 2015 | Jun. 30, 2015 | Dec. 31, 2014
Short-term Debt [Line Items] |  |  |  |
Short-term borrowings, weighted average rate |  | 0.53% |  | 0.35%
Short-term borrowings |  | $ 293,100,000 |  | $ 334,804,000
Subordinated Notes Due April 15, 2030 [Member] |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Cost related to issuance of debt |  | 1,100,000 |  |
Proceeds from issuance of debt, net |  | $ 38,900,000 |  |
Principal amount | $ 40,000,000 |  | $ 40,000,000 |
Interest rate | 6.00% |  |  |
Number of years at stated rate |  | 10 years |  |
Debt issuance cost amortization period |  | 15 years |  |
Federal Home Loan Bank Advances [Member] |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Short-term borrowings |  | $ 293,100,000 |  | 295,300,000
Federal Home Loan Bank Overnight Borrowings [Member] |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Short-term borrowings |  | 116,800,000 |  | 129,000,000
Federal Home Loan Borrowings Short Term Advances [Member] |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Short-term borrowings |  | $ 176,300,000 |  | $ 166,300,000
LIBOR [Member] | Subordinated Notes Due April 15, 2030 [Member] |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Spread on variable rate | 3.944% |  |  |

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