Loan grades range.

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Loans and the allowance for loan losses.

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- Definition

Nonperforming loans charged off past due period.

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- Definition

Number of Restructured Loans

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No definition available.

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- Definition

Maximum duration past due for restructured loans to be considered performing.

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No definition available.

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- Definition

Unfunded commitment.

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No definition available.

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- Definition

The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
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- Definition

Amount of investment related to financing receivables modified by troubled debt restructurings within the previous 12 months, for which there was a payment default.

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- Definition

Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

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- Definition

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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- Definition

Reflects the unfunded portion of contractual agreements to lend funds to borrowers for loans whose terms have been modified by troubled debt restructuring.

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

The amount of interest income on impaired and nonperforming loans that is due to the change in present value attributable to the passage of time.

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- Definition

Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes loans held for sale. Excludes loans and leases covered under loss sharing agreements.

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Non Purchased Loans - Additional Information (Details)	12 Months Ended
Non Purchased Loans - Additional Information (Details)	Dec. 31, 2017 USD ($) loan_grade loan	Dec. 31, 2016 USD ($) loan	Dec. 31, 2015 USD ($)
Loans and Allowance for Loan Losses (Textual) [Abstract]
Restructured loans discontinued past due period	90 days
Allowance for loan losses attributable to restructured loans	$ 46,211,000	$ 42,737,000
Non-Purchased
Loans and Allowance for Loan Losses (Textual) [Abstract]
Nonperforming loans charged off past due period	90 days
Number of restructured loans \| loan	4	1
Restructured loans discontinued past due period	90 days	90 days
Average recorded investment in impaired loans	$ 21,998,000	$ 23,209,000	$ 34,428,000
Interest income recognized on impaired loans			854,000
Modifications, recorded investment	5,588,000	7,447,000	$ 10,252,000
Modifications, subsequent default, recorded investment	184,000
Remaining availability under commitments to lend additional funds on restructured loans	18,000	2,000
Unfunded commitment	$ 9,333,000	5,933,000
Non-Purchased \| Minimum
Loans and Allowance for Loan Losses (Textual) [Abstract]
Loan grades range (loan grade) \| loan_grade	1
Non-Purchased \| Maximum
Loans and Allowance for Loan Losses (Textual) [Abstract]
Loan grades range (loan grade) \| loan_grade	9
Non-Purchased \| Pass \| Minimum
Loans and Allowance for Loan Losses (Textual) [Abstract]
Loan grades range (loan grade) \| loan_grade	1
Non-Purchased \| Pass \| Maximum
Loans and Allowance for Loan Losses (Textual) [Abstract]
Loan grades range (loan grade) \| loan_grade	4
Non-Purchased \| Watch
Loans and Allowance for Loan Losses (Textual) [Abstract]
Loan grades range (loan grade) \| loan_grade	5
Non-Purchased \| Substandard \| Minimum
Loans and Allowance for Loan Losses (Textual) [Abstract]
Loan grades range (loan grade) \| loan_grade	6
Non-Purchased \| Substandard \| Maximum
Loans and Allowance for Loan Losses (Textual) [Abstract]
Loan grades range (loan grade) \| loan_grade	9
Non-Purchased \| Nonaccruing Loans
Loans and Allowance for Loan Losses (Textual) [Abstract]
Outstanding balance of restructured loans	$ 649,000	69,000
Non-Purchased \| Restructured Loans
Loans and Allowance for Loan Losses (Textual) [Abstract]
Outstanding balance of restructured loans	2,673,000	6,164,000
Allowance for loan losses attributable to restructured loans	$ 85,000	$ 283,000