Loans and The Allowance for Loan Losses - Summary of Troubled Debt Restructurings (Details)	3 Months Ended
Mar. 31, 2018 USD ($) contract
Financing Receivable, Modifications [Line Items]
Number of contracts \| contract	4
Pre-Modification Outstanding Recorded Investment	$ 2,032
Post-Modification Outstanding Recorded Investment	$ 2,038
Consumer, Excluding Consumer Other Portfolio Segment \| Commercial Real Estate
Financing Receivable, Modifications [Line Items]
Number of contracts \| contract	1
Pre-Modification Outstanding Recorded Investment	$ 1,563
Post-Modification Outstanding Recorded Investment	$ 1,563
Consumer, Excluding Consumer Other Portfolio Segment \| 1-4 Family Residential
Financing Receivable, Modifications [Line Items]
Number of contracts \| contract	3
Pre-Modification Outstanding Recorded Investment	$ 469
Post-Modification Outstanding Recorded Investment	$ 475

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Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953676-111524

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