Loans and Allowance for Credit Losses on Loans HFI - Schedule of Loans Outstanding by Class of Financing Receivable (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Mar. 31, 2026	Dec. 31, 2025	Jun. 30, 2025	Mar. 31, 2025	Dec. 31, 2024
Financing Receivable, Past Due [Line Items]
Gross loans	$ 12,865,510		$ 12,383,626
Less: Allowance for credit losses on loans HFI	(194,010)	$ (186,324)	(185,983)	$ (148,948)	$ (150,531)	$ (151,942)
Net loans held for investment	12,671,500		12,197,643
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Gross loans	2,259,794		2,181,935
Less: Allowance for credit losses on loans HFI	(26,275)	(25,468)	(24,130)	(20,271)	(15,521)	(16,667)
Construction
Financing Receivable, Past Due [Line Items]
Gross loans	1,157,961		1,188,494
Less: Allowance for credit losses on loans HFI	(27,457)	(27,523)	(25,633)	(21,848)	(25,652)	(31,698)
Residential real estate: \| 1-to-4 family mortgage
Financing Receivable, Past Due [Line Items]
Gross loans	1,917,533		1,838,122
Less: Allowance for credit losses on loans HFI	(33,846)	(33,181)	(33,218)	(30,262)	(26,200)	(25,340)
Residential real estate: \| Residential line of credit
Financing Receivable, Past Due [Line Items]
Gross loans	802,753		741,309
Less: Allowance for credit losses on loans HFI	(10,186)	(10,537)	(10,589)	(8,671)	(11,196)	(10,952)
Residential real estate: \| Multi-family mortgage
Financing Receivable, Past Due [Line Items]
Gross loans	767,500		745,360
Less: Allowance for credit losses on loans HFI	(11,566)	(10,361)	(12,260)	(10,894)	(11,416)	(10,512)
Commercial real estate: \| Owner-occupied
Financing Receivable, Past Due [Line Items]
Gross loans	2,252,681		2,148,870
Less: Allowance for credit losses on loans HFI	(19,961)	(22,135)	(21,609)	(11,939)	(12,074)	(11,993)
Commercial real estate: \| Non-owner occupied
Financing Receivable, Past Due [Line Items]
Gross loans	3,016,923		2,900,499
Less: Allowance for credit losses on loans HFI	(42,003)	(34,989)	(36,235)	(26,303)	(28,319)	(25,531)
Consumer and other
Financing Receivable, Past Due [Line Items]
Gross loans	690,365		639,037
Less: Allowance for credit losses on loans HFI	$ (22,716)	$ (22,130)	$ (22,309)	$ (18,760)	$ (20,153)	$ (19,249)