Derivative Financial Instruments - Summary of Derivative Notional Amounts and Fair Values (Details) - Interest rate swaps - USD ($) $ in Thousands	6 Months Ended	9 Months Ended
Jun. 30, 2022	Sep. 30, 2022	Dec. 31, 2021
Other assets \| Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount		$ 100,000	$ 100,000
Weighted average remaining term (years)	3 years 3 months 18 days	2 years 6 months
Pay/Received fixed rate (weighted average)		0.49%	0.49%
Received/Pay variable rate (weighted average)		2.74%	0.12%
Estimated fair value		$ 9,161	$ 2,291
Other assets \| Not Designated as Hedging Instrument \| Correspondent Banks
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount		$ 988,492	$ 148,199
Weighted average remaining term (years)	7 years 2 months 12 days	5 years 2 months 12 days
Pay/Received fixed rate (weighted average)		2.73%	2.92%
Received/Pay variable rate (weighted average)		3.94%	2.08%
Estimated fair value		$ 74,803	$ 3,001
Other assets \| Not Designated as Hedging Instrument \| Customers
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount		$ 15,969	$ 440,486
Weighted average remaining term (years)	6 years 1 month 6 days	10 years
Pay/Received fixed rate (weighted average)		5.46%	4.03%
Received/Pay variable rate (weighted average)		4.56%	2.20%
Estimated fair value		$ 50	$ 14,906
Other liabilities \| Not Designated as Hedging Instrument \| Correspondent Banks
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount		$ 15,969	$ 440,486
Weighted average remaining term (years)	6 years 1 month 6 days	10 years
Pay/Received fixed rate (weighted average)		5.46%	4.03%
Received/Pay variable rate (weighted average)		4.56%	2.20%
Estimated fair value		$ (50)	$ (14,906)
Other liabilities \| Not Designated as Hedging Instrument \| Customers
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount		$ 988,492	$ 148,199
Weighted average remaining term (years)	7 years 2 months 12 days	5 years 2 months 12 days
Pay/Received fixed rate (weighted average)		2.73%	2.92%
Received/Pay variable rate (weighted average)		3.94%	2.08%
Estimated fair value		$ (74,803)	$ (3,001)

Average fixed interest rate related to the group of interest rate derivatives.

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- Definition

Average remaining period until maturity of the derivative contract, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Average variable interest rate related to the group of interest rate derivatives.

+ References

No definition available.

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- Definition

Fair value of the assets less the liabilities of a derivative or group of derivatives.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI https://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611

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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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- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959

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