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.

No definition available.

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- Definition

Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

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- Definition

Amount, after troubled debt restructuring, of modified financing receivable.

+ References

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- Definition

Amount, before troubled debt restructuring, of financing receivable to be modified.

+ References

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Loans Held for Investment and Allowance for Loan Losses - Schedule of Loans Modified and Considered Troubled Debt Restructurings (Detail) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021 USD ($) Securityloan	Sep. 30, 2020 USD ($) Securityloan	Sep. 30, 2021 USD ($) Securityloan	Sep. 30, 2020 USD ($) Securityloan
Financing Receivable, Modifications [Line Items]
Number \| Securityloan	4	4	17	16
Pre-Modification Recorded Investment	$ 105	$ 779	$ 2,255	$ 1,535
Post-Modification Recorded Investment	$ 105	$ 779	$ 2,255	$ 1,535
Commercial [Member]
Financing Receivable, Modifications [Line Items]
Number \| Securityloan	0	2	4	11
Pre-Modification Recorded Investment	$ 0	$ 667	$ 361	$ 1,151
Post-Modification Recorded Investment	$ 0	$ 667	$ 361	$ 1,151
Commercial [Member] \| Commercial – C&I [Member]
Financing Receivable, Modifications [Line Items]
Number \| Securityloan			4
Pre-Modification Recorded Investment			$ 361
Post-Modification Recorded Investment			$ 361
Agriculture [Member]
Financing Receivable, Modifications [Line Items]
Number \| Securityloan			1	1
Pre-Modification Recorded Investment			$ 68	$ 134
Post-Modification Recorded Investment			$ 68	$ 134
Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number \| Securityloan	2	2	9	3
Pre-Modification Recorded Investment	$ 77	$ 112	$ 1,766	$ 236
Post-Modification Recorded Investment	$ 77	$ 112	$ 1,766	$ 236
Real Estate [Member] \| Construction & Development [Member]
Financing Receivable, Modifications [Line Items]
Number \| Securityloan			1
Pre-Modification Recorded Investment			$ 200
Post-Modification Recorded Investment			200
Real Estate [Member] \| Non Owner Occupied CRE [Member]
Financing Receivable, Modifications [Line Items]
Pre-Modification Recorded Investment
Post-Modification Recorded Investment
Real Estate [Member] \| Owner Occupied CRE [Member]
Financing Receivable, Modifications [Line Items]
Number \| Securityloan			3
Pre-Modification Recorded Investment			$ 1,047
Post-Modification Recorded Investment			$ 1,047
Real Estate [Member] \| Residential [Member]
Financing Receivable, Modifications [Line Items]
Number \| Securityloan	2		5
Pre-Modification Recorded Investment	$ 77		$ 519
Post-Modification Recorded Investment	$ 77		$ 519
Consumer [Member]
Financing Receivable, Modifications [Line Items]
Number \| Securityloan	2		3	1
Pre-Modification Recorded Investment	$ 28		$ 60	$ 14
Post-Modification Recorded Investment	$ 28		$ 60	$ 14
Consumer [Member] \| Auto [Member]
Financing Receivable, Modifications [Line Items]
Number \| Securityloan	1		2
Pre-Modification Recorded Investment	$ 19		$ 51
Post-Modification Recorded Investment	$ 19		$ 51
Consumer [Member] \| Non Auto [Member]
Financing Receivable, Modifications [Line Items]
Number \| Securityloan	1		1
Pre-Modification Recorded Investment	$ 9		$ 9
Post-Modification Recorded Investment	$ 9		$ 9