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Fair Value Measurements - Changes in Fair Value of Loans Held for Sale (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2018 USD ($)	[1]
Fair Value Option Quantitative Disclosures [Line Items]
Mortgage Banking Income	$ (224)
Mortgage Servicing Rights
Fair Value Option Quantitative Disclosures [Line Items]
Mortgage Banking Income	$ (224)
[1] Included in “Non-interest income.

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- Definition

For each line item in the statement of financial position, the amounts of gains and losses from fair value changes included in earnings.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=75031198&loc=d3e14172-108612

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- Definition

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.

+ References

No definition available.

+ Details

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