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Securities - Summary of Amortized Cost and Fair Values of Securities Held-to-maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Schedule Of Held To Maturity Securities [Line Items]
Held-to-maturity Securities, Amortized Cost	$ 4,412	$ 99,266
Held-to-maturity Securities, Gross Unrealized Gains	86	133
Held-to-maturity Securities, Gross Unrealized Losses		(1,660)
Held-to-maturity Securities, Fair Value	4,498	97,739
Obligations of States, Municipalities, and Political Subdivisions
Schedule Of Held To Maturity Securities [Line Items]
Held-to-maturity Securities, Amortized Cost	4,412	23,835
Held-to-maturity Securities, Gross Unrealized Gains	86	40
Held-to-maturity Securities, Gross Unrealized Losses		(210)
Held-to-maturity Securities, Fair Value	$ 4,498	23,665
Agency, Residential Mortgage-Backed Securities
Schedule Of Held To Maturity Securities [Line Items]
Held-to-maturity Securities, Amortized Cost		40,082
Held-to-maturity Securities, Gross Unrealized Gains		93
Held-to-maturity Securities, Gross Unrealized Losses		(531)
Held-to-maturity Securities, Fair Value		39,644
Non-Agency, Residential Mortgage-Backed Securities
Schedule Of Held To Maturity Securities [Line Items]
Held-to-maturity Securities, Amortized Cost		35,349
Held-to-maturity Securities, Gross Unrealized Losses		(919)
Held-to-maturity Securities, Fair Value		$ 34,430

X

- Definition

Amount of investment in debt security measured at amortized cost (held-to-maturity).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
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Amount of accumulated unrecognized gain on investment in debt security measured at amortized cost (held-to-maturity).

+ References

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-Name Accounting Standards Codification
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Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity).

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