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Loans and Allowance for Credit Losses - Loan Portfolio by Categories (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Loans and Leases Receivable Disclosure [Line Items]
Loans	$ 17,336,040	$ 16,845,670
Consumer
Loans and Leases Receivable Disclosure [Line Items]
Loans	291,592	318,666
Consumer | Credit cards
Loans and Leases Receivable Disclosure [Line Items]
Loans	177,696	191,204
Consumer | Other consumer
Loans and Leases Receivable Disclosure [Line Items]
Loans	113,896	127,462
Real Estate
Loans and Leases Receivable Disclosure [Line Items]
Loans	13,513,463	13,338,186
Real Estate | Construction and development
Loans and Leases Receivable Disclosure [Line Items]
Loans	2,796,378	3,144,220
Real Estate | Single family residential
Loans and Leases Receivable Disclosure [Line Items]
Loans	2,724,648	2,641,556
Real Estate | Other commercial
Loans and Leases Receivable Disclosure [Line Items]
Loans	7,992,437	7,552,410
Commercial
Loans and Leases Receivable Disclosure [Line Items]
Loans	2,781,724	2,722,886
Commercial | Commercial
Loans and Leases Receivable Disclosure [Line Items]
Loans	2,467,384	2,490,176
Commercial | Agricultural
Loans and Leases Receivable Disclosure [Line Items]
Loans	314,340	232,710
Other
Loans and Leases Receivable Disclosure [Line Items]
Loans	$ 749,261	$ 465,932

X

- Definition

Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-5

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- Definition

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+ References

No definition available.

+ Details

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