Loans, Allowance for Credit Losses, and Asset Quality Information - Schedule of Analysis of Payment Status of Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Financing Receivable, Past Due [Line Items]
Loans	$ 8,076,506	$ 8,150,102
Nonaccrual loans	35,622	32,208
Unamortized net deferred loan fees	240	(178)
Total	8,076,266	8,150,280
Accruing 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	26,797	24,975
Accruing 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	640	4,798
Current
Financing Receivable, Past Due [Line Items]
Loans	8,013,207	8,088,299
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	12,701	9,876
Total	872,623	905,862
Commercial and industrial \| Accruing 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	1,850	3,726
Commercial and industrial \| Accruing 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	257	257
Commercial and industrial \| Current
Financing Receivable, Past Due [Line Items]
Loans	857,815	892,003
Commercial and industrial \| Loans, Excluding Purchased Credit Impaired Loans
Financing Receivable, Past Due [Line Items]
Total	872,623	905,862
Real estate, commercial \| Construction, development & other land loans
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	61	399
Total	904,216	992,980
Real estate, commercial \| Construction, development & other land loans \| Accruing 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	388	241
Real estate, commercial \| Construction, development & other land loans \| Accruing 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	0	256
Real estate, commercial \| Construction, development & other land loans \| Current
Financing Receivable, Past Due [Line Items]
Loans	903,767	992,084
Real estate, commercial \| Construction, development & other land loans \| Loans, Excluding Purchased Credit Impaired Loans
Financing Receivable, Past Due [Line Items]
Total	904,216	992,980
Real estate, commercial \| Commercial real estate - owner occupied
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	8,968	7,042
Total	1,238,759	1,259,022
Real estate, commercial \| Commercial real estate - owner occupied \| Accruing 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	1,055	906
Real estate, commercial \| Commercial real estate - owner occupied \| Accruing 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	0	404
Real estate, commercial \| Commercial real estate - owner occupied \| Current
Financing Receivable, Past Due [Line Items]
Loans	1,228,736	1,250,670
Real estate, commercial \| Commercial real estate - owner occupied \| Loans, Excluding Purchased Credit Impaired Loans
Financing Receivable, Past Due [Line Items]
Total	1,238,759	1,259,022
Real estate, commercial \| Commercial real estate - non owner occupied
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	6,932	7,203
Total	2,524,221	2,528,060
Real estate, commercial \| Commercial real estate - non owner occupied \| Accruing 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	6,944	361
Real estate, commercial \| Commercial real estate - non owner occupied \| Accruing 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	95	0
Real estate, commercial \| Commercial real estate - non owner occupied \| Current
Financing Receivable, Past Due [Line Items]
Loans	2,510,250	2,520,496
Real estate, commercial \| Commercial real estate - non owner occupied \| Loans, Excluding Purchased Credit Impaired Loans
Financing Receivable, Past Due [Line Items]
Total	2,524,221	2,528,060
Real estate, commercial \| Multi-family real estate
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	0	0
Total	457,142	421,376
Real estate, commercial \| Multi-family real estate \| Accruing 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	0	0
Real estate, commercial \| Multi-family real estate \| Accruing 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	0	0
Real estate, commercial \| Multi-family real estate \| Current
Financing Receivable, Past Due [Line Items]
Loans	457,142	421,376
Real estate, commercial \| Multi-family real estate \| Loans, Excluding Purchased Credit Impaired Loans
Financing Receivable, Past Due [Line Items]
Total	457,142	421,376
Real estate, mortgage \| Residential 1-4 family real estate
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	4,497	4,843
Total	1,684,173	1,639,469
Real estate, mortgage \| Residential 1-4 family real estate \| Accruing 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	15,682	18,868
Real estate, mortgage \| Residential 1-4 family real estate \| Accruing 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	0	3,401
Real estate, mortgage \| Residential 1-4 family real estate \| Current
Financing Receivable, Past Due [Line Items]
Loans	1,663,994	1,612,357
Real estate, mortgage \| Residential 1-4 family real estate \| Loans, Excluding Purchased Credit Impaired Loans
Financing Receivable, Past Due [Line Items]
Total	1,684,173	1,639,469
Real estate, mortgage \| Home equity loans/lines of credit
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	2,312	2,703
Total	328,466	335,068
Real estate, mortgage \| Home equity loans/lines of credit \| Accruing 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	696	603
Real estate, mortgage \| Home equity loans/lines of credit \| Accruing 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	222	349
Real estate, mortgage \| Home equity loans/lines of credit \| Current
Financing Receivable, Past Due [Line Items]
Loans	325,236	331,413
Real estate, mortgage \| Home equity loans/lines of credit \| Loans, Excluding Purchased Credit Impaired Loans
Financing Receivable, Past Due [Line Items]
Total	328,466	335,068
Consumer loans
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	151	142
Total	66,666	68,443
Consumer loans \| Accruing 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	182	270
Consumer loans \| Accruing 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	66	131
Consumer loans \| Current
Financing Receivable, Past Due [Line Items]
Loans	66,267	67,900
Consumer loans \| Loans, Excluding Purchased Credit Impaired Loans
Financing Receivable, Past Due [Line Items]
Total	$ 66,666	$ 68,443

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

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