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Revenue from Contracts with Customers - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Non-interest Income
Service charges on deposit accounts									$ 5,759	$ 4,809	$ 4,297
Wealth and asset management fees									4,172	3,724	3,087
Mortgage banking									1,019	906	1,095
Card processing and interchange income									4,261	3,763	3,396
Net realized gains on available-for-sale securities									0	1,543	1,005
Other income									5,512	6,690
Total non-interest income	$ 4,433	$ 5,933	$ 5,606	$ 4,751	$ 5,541	$ 5,032	$ 5,089	$ 5,773	$ 20,723	$ 21,435	$ 17,691

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Card processing and interchange income.

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Mortgage Banking

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Noninterest Income, Other Income Not Separately Disclosed

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Service Charges On Deposit Accounts

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Amount of realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/recommendedDisclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 9
-Subparagraph (a)
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Amount of fees and commissions from banking, advisory, brokerage, and securities underwriting activities. Activities include, but are not limited to, underwriting securities, private placements of securities, investment advisory and management services, merger and acquisition services, sale and servicing of mutual funds, and other related consulting fees.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.13(b))
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The total amount of noninterest income which may be derived from: (1) fees and commissions; (2) premiums earned; (3) insurance policy charges; (4) the sale or disposal of assets; and (5) other sources not otherwise specified.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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