Other Borrowed Funds (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
Sep. 30, 2015	Dec. 31, 2014
Other borrowed funds disclosures
Federal Home Loan Bank advances maturity period	8 years	8 years
Borrowings outstanding	$ 161,973	$ 52,191
Average interest rate of outstanding balances	0.20%
Federal Home Loan Bank Advances [Member]
Other borrowed funds disclosures
Total borrowing capacity available	$ 312,300	367,200
Borrowings outstanding	158,893	$ 47,586
Average interest rate of outstanding balances		0.25%
Federal Reserve Bank Advances [Member]
Other borrowed funds disclosures
Borrowings outstanding	0	$ 0
Available borrowing capacity	352,900	377,300
Securities Sold under Agreements to Repurchase [Member]
Other borrowed funds disclosures
Borrowings outstanding	3,080	4,605
Federal Funds Purchased [Member]
Other borrowed funds disclosures
Federal Funds purchased outstanding	$ 0	$ 0

Represents the maturity period for Federal Home Loan Bank advances.

No definition available.

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- Definition

Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(b))

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- Definition

Amount of short term borrowing where a bank borrows, at the federal funds rate, from another bank.

+ References

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- Definition

The calculated weighted average interest rate for Federal Home Loan Bank advances outstanding as of the Balance Sheet date.

+ References

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- Definition

Amount of maximum advances or credit lines available from the Federal Home Loan Bank (FHLB).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

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-Subparagraph (SX 210.9-03.13(3)(a))

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- Definition

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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-Publisher SEC

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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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