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Borrowed Funds (Pledged financial instruments) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Debt Disclosure [Abstract]
Pledged to secure borrowed funds	$ 402,702	$ 410,988
Pledged to secure repurchase agreements	32,933	54,898
Pledged for public deposits and for other purposes necessary or required by law	33,958	27,976
Total	469,593	493,862
Short-term Debt [Line Items]
AFS securities pledged without single maturity dates	32,933	54,898
State and Local Funds Purchased [Member]
Short-term Debt [Line Items]
AFS securities pledged without single maturity dates	2,413	7,332
Mortgage Backed Securities, Other [Member]
Short-term Debt [Line Items]
AFS securities pledged without single maturity dates	9,192	13,199
Collateralized Mortgage Obligations [Member]
Short-term Debt [Line Items]
AFS securities pledged without single maturity dates	$ 21,328	$ 34,367

X

- Definition

Pledged Financial Instruments, Available for Sale Securities, without Single Maturity Date

+ References

No definition available.

+ Details

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X

- Definition

Pledged Financial Instruments, Not Separately Reported, Securities And Loans Receivable, For Federal Home Loan Bank Debt And Federal Reserve Bank Discount Window

+ References

No definition available.

+ Details

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X

- Definition

Pledged Financial Instruments, Not Separately Reported, Securities And Loans Receivable Pledged As Collateral

+ References

No definition available.

+ Details

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- References

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X

- Definition

The carrying amount as of the date of the latest financial statement presented of securities which are owned but transferred to serve as collateral for debt facilities other than FHLB loans, repurchase agreements and letter of credit arrangements, and for which the transferee does not have the right by contract or custom to sell or re-pledge them to an unrelated party.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 30
-Section 50
-Paragraph 1A
-Subparagraph (b)(1)(i)
-URI http://asc.fasb.org/extlink&oid=64858031&loc=SL6224234-111729

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X

- Definition

The carrying amount as of the date of the latest financial statement presented of securities which are owned but transferred to serve as collateral for repurchase agreements, and for which the transferee does not have the right by contract or custom to sell or re-pledge them to an unrelated party.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 30
-Section 50
-Paragraph 1A
-Subparagraph (b)(1)(i)
-URI http://asc.fasb.org/extlink&oid=64858031&loc=SL6224234-111729

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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