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Derivative Financial Instruments - Effect of Derivative Instruments on Consolidated Statements of Income Derivative in Fair Value Hedging Relationship (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Derivatives designated as hedging instruments
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized on derivative	$ (628)	$ (1,901)	$ (1,838)
Derivatives not designated as hedging instruments
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized on derivative	(703)	(885)	413
Interest rate contract | Derivatives designated as hedging instruments | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized on derivative	(628)	(1,901)	(1,838)
Interest rate contract | Derivatives not designated as hedging instruments | Fair Value Hedging | Interest income – loans receivable
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized on derivative	(39)	(372)	(223)
Interest rate contract | Derivatives not designated as hedging instruments | Fair Value Hedging | Interest income – investment securities
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized on derivative	(99)	(267)	(183)
Mortgage loan contracts | Derivatives not designated as hedging instruments
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized on derivative	188	(238)	38
Commitments to originate mortgage loans | Derivatives not designated as hedging instruments
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized on derivative	$ (753)	$ (8)	$ 781

X

- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)(1)
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959

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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.

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