Loans, Allowance for Credit Losses, and Asset Quality Information - Schedule of Analysis of Payment Status of Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Financing Receivable, Past Due [Line Items]
Loans	$ 8,013,538	$ 8,150,102
Nonaccrual loans	34,125	32,208
Unamortized net deferred loan costs/(fees)	797	(178)
Total	8,012,741	8,150,280
Accruing 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	7,484	24,975
Accruing 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	5,127	4,798
Current
Financing Receivable, Past Due [Line Items]
Loans	7,966,005	8,088,299
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	10,310	9,876
Total	847,284	905,862
Commercial and industrial \| Accruing 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	2,468	3,726
Commercial and industrial \| Accruing 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	200	257
Commercial and industrial \| Current
Financing Receivable, Past Due [Line Items]
Loans	834,306	892,003
Commercial and industrial \| Loans, Excluding Purchased Credit Impaired Loans
Financing Receivable, Past Due [Line Items]
Total	847,284	905,862
Real estate, commercial \| Construction, development & other land loans
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	17	399
Total	760,949	992,980
Real estate, commercial \| Construction, development & other land loans \| Accruing 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	910	241
Real estate, commercial \| Construction, development & other land loans \| Accruing 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	65	256
Real estate, commercial \| Construction, development & other land loans \| Current
Financing Receivable, Past Due [Line Items]
Loans	759,957	992,084
Real estate, commercial \| Construction, development & other land loans \| Loans, Excluding Purchased Credit Impaired Loans
Financing Receivable, Past Due [Line Items]
Total	760,949	992,980
Real estate, commercial \| Commercial real estate - owner occupied
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	10,090	7,042
Total	1,226,050	1,259,022
Real estate, commercial \| Commercial real estate - owner occupied \| Accruing 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	279	906
Real estate, commercial \| Commercial real estate - owner occupied \| Accruing 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	209	404
Real estate, commercial \| Commercial real estate - owner occupied \| Current
Financing Receivable, Past Due [Line Items]
Loans	1,215,472	1,250,670
Real estate, commercial \| Commercial real estate - owner occupied \| Loans, Excluding Purchased Credit Impaired Loans
Financing Receivable, Past Due [Line Items]
Total	1,226,050	1,259,022
Real estate, commercial \| Commercial real estate - non owner occupied
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	6,067	7,203
Total	2,572,901	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	287	361
Real estate, commercial \| Commercial real estate - non owner occupied \| Accruing 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	222	0
Real estate, commercial \| Commercial real estate - non owner occupied \| Current
Financing Receivable, Past Due [Line Items]
Loans	2,566,325	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	2,572,901	2,528,060
Real estate, commercial \| Multi-family real estate
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	0	0
Total	460,565	421,376
Real estate, commercial \| Multi-family real estate \| Accruing 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	146	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	460,419	421,376
Real estate, commercial \| Multi-family real estate \| Loans, Excluding Purchased Credit Impaired Loans
Financing Receivable, Past Due [Line Items]
Total	460,565	421,376
Real estate, mortgage \| Residential 1-4 family real estate
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	5,578	4,843
Total	1,737,133	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	1,794	18,868
Real estate, mortgage \| Residential 1-4 family real estate \| Accruing 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	4,102	3,401
Real estate, mortgage \| Residential 1-4 family real estate \| Current
Financing Receivable, Past Due [Line Items]
Loans	1,725,659	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	1,737,133	1,639,469
Real estate, mortgage \| Home equity loans/lines of credit
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	1,925	2,703
Total	331,072	335,068
Real estate, mortgage \| Home equity loans/lines of credit \| Accruing 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	1,278	603
Real estate, mortgage \| Home equity loans/lines of credit \| Accruing 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	97	349
Real estate, mortgage \| Home equity loans/lines of credit \| Current
Financing Receivable, Past Due [Line Items]
Loans	327,772	331,413
Real estate, mortgage \| Home equity loans/lines of credit \| Loans, Excluding Purchased Credit Impaired Loans
Financing Receivable, Past Due [Line Items]
Total	331,072	335,068
Consumer loans
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	138	142
Total	76,787	68,443
Consumer loans \| Accruing 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	322	270
Consumer loans \| Accruing 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	232	131
Consumer loans \| Current
Financing Receivable, Past Due [Line Items]
Loans	76,095	67,900
Consumer loans \| Loans, Excluding Purchased Credit Impaired Loans
Financing Receivable, Past Due [Line Items]
Total	$ 76,787	$ 68,443

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

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