Loans and Allowance for Credit Losses - Summary of Loans by Credit Quality Risk Rating (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
Loans And Leases Receivable Disclosure [Line Items]
Gross loans receivable	$ 4,192,117	$ 3,756,829
Financing Receivable, Unamortized Loan Cost (Fee) and Purchase Premium (Discount)	(6,588)	(7,298)
Loans receivable	4,185,529	3,749,531
Commercial and industrial loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	241,401	224,439
Construction, land and land development loans
Loans And Leases Receivable Disclosure [Line Items]
Gross loans receivable
Real Estate Portfolio Segment \| Residential real estate loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	191,980	202,293
Real Estate Portfolio Segment \| Commercial real estate loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	1,291,700	1,285,856
Consumer and other loans:
Loans And Leases Receivable Disclosure [Line Items]
Gross loans receivable	1,653,863	1,328,461
Loans receivable	10,736	14,072
Pass [Member] \| Commercial and industrial loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	226,392	220,697
Pass [Member] \| Real Estate Portfolio Segment \| Residential real estate loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	189,933	200,087
Pass [Member] \| Real Estate Portfolio Segment \| Commercial real estate loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	1,258,975	1,254,213
Pass [Member] \| Consumer and other loans:
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	10,736	14,072
Substandard [Member] \| Commercial and industrial loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	149	2,151
Substandard [Member] \| Real Estate Portfolio Segment \| Residential real estate loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	1,695	1,419
Substandard [Member] \| Real Estate Portfolio Segment \| Commercial real estate loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	4,000	4,344
Substandard [Member] \| Consumer and other loans:
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	0	0
Doubtful [Member] \| Commercial and industrial loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	0	0
Doubtful [Member] \| Real Estate Portfolio Segment \| Residential real estate loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	0	0
Doubtful [Member] \| Real Estate Portfolio Segment \| Commercial real estate loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	0	0
Doubtful [Member] \| Consumer and other loans:
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	0	0
Other Loans Especially Mentioned \| Commercial and industrial loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	14,860	1,591
Other Loans Especially Mentioned \| Real Estate Portfolio Segment \| Residential real estate loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	352	787
Other Loans Especially Mentioned \| Real Estate Portfolio Segment \| Commercial real estate loans
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	28,725	27,299
Other Loans Especially Mentioned \| Consumer and other loans:
Loans And Leases Receivable Disclosure [Line Items]
Loans receivable	$ 0	$ 0