v3.26.1
Loans and Allowance for Credit Losses - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Mar. 31, 2026
Dec. 31, 2025
Mar. 31, 2025
Dec. 31, 2024
Financing Receivable, Allowance for Credit Loss [Line Items]                
Proceeds from sales of loans held for sale     $ 118 $ 0        
Transfer from loans to loans held for sale     7,876,707 2,084,172        
Loans held for sale $ 107,838   107,838     $ 71,216    
Accrued interest on loans 20,400   20,400     17,900    
Accrued interest on loans, allowance (639)   (639)     (616)    
Pledged loans 3,994,546   3,994,546     3,580,001    
Balance of SBA and USDA loans and participations sold and serviced 2,300   2,300     2,500    
Balance of main street lending program loans and participations serviced 23,100   23,100          
Purchased loans 4,300   4,300          
Unamortized premium 81   81     84    
Purchased participation loans 24,000   24,000     26,900    
90 Days or More Past Due and Still Accruing $ 38,499   $ 38,499     33,144    
Threshold period for past due loans (in days) 90 days   90 days          
Accounts receivable, noncurrent, 90 days or more past due, still accruing           33,100    
Allowance for credit losses $ 213,724 $ 164,794 $ 213,724 164,794 $ 172,427 169,530 $ 183,178 $ 176,994
Loans receivable 4,208,270   4,208,270     3,749,531    
Gross loans receivable 4,215,122   4,215,122     3,756,829    
CCBX                
Financing Receivable, Allowance for Credit Loss [Line Items]                
90 Days or More Past Due and Still Accruing 38,499   38,499     33,144    
Provision (Recapture) For Unfunded Commitments 12 (182) 23 602        
Gross loans receivable 2,226,296   2,226,296     1,808,094    
Community Bank                
Financing Receivable, Allowance for Credit Loss [Line Items]                
90 Days or More Past Due and Still Accruing 0   0     0    
Gross loans receivable 1,988,826   1,988,826     1,948,735    
Owner-Occupied Real Estate                
Financing Receivable, Allowance for Credit Loss [Line Items]                
Commercial real estate loans 392,100   392,100     374,700    
Non-Owner-Occupied Real Estate                
Financing Receivable, Allowance for Credit Loss [Line Items]                
Commercial real estate loans 551,800   551,800     531,100    
Multi-Family Residential Loans                
Financing Receivable, Allowance for Credit Loss [Line Items]                
Commercial real estate loans 362,100   362,100     367,900    
Farmland Loans                
Financing Receivable, Allowance for Credit Loss [Line Items]                
Commercial real estate loans $ 13,800   $ 13,800     12,200    
CCBX                
Financing Receivable, Allowance for Credit Loss [Line Items]                
Company's responsibility for credit losses (in percent) 5.00%   5.00%          
Loans receivable $ 350,800   $ 350,800          
Amount of loans that company is responsible for credit loss $ 23,400   $ 23,400          
Responsibility of partner, percentage 95.00%   95.00%          
Revenue earned, percentage 100.00%   100.00%          
Fraud losses, responsibility of partner, percentage 100.00%   100.00%          
CCBX | Less Than 90 Days Past Due                
Financing Receivable, Allowance for Credit Loss [Line Items]                
Nonaccrual loans $ 24,600   $ 24,600     20,300    
Minimum                
Financing Receivable, Allowance for Credit Loss [Line Items]                
Sustained repayment performance period of loan placed on nonaccrual     6 months          
Percentage of collateral coverage to loan balance     100.00%          
Loan repayment extended period of time     6 months          
Unfunded Loan Commitment                
Financing Receivable, Allowance for Credit Loss [Line Items]                
Provision (Recapture) For Unfunded Commitments 213 1,500 $ (1,100) 2,100        
Accounts Receivable                
Financing Receivable, Allowance for Credit Loss [Line Items]                
Provision (Recapture) For Unfunded Commitments 0 0 252 0        
Asset Pledged as Collateral                
Financing Receivable, Allowance for Credit Loss [Line Items]                
Pledged loans 865,600   865,600     895,500    
Commercial and industrial loans                
Financing Receivable, Allowance for Credit Loss [Line Items]                
Capital call lines, provided to venture capital firms 204,800   204,800     210,500    
Balance of main street lending program loans and participations serviced 1,200   1,200          
Allowance for credit losses 6,882 8,754 6,882 8,754 7,728 8,757 10,066 11,051
Loans receivable 237,176   237,176     224,439    
Consumer and other loans:                
Financing Receivable, Allowance for Credit Loss [Line Items]                
Overdrafts included in loans 35,500   35,500     16,900    
Allowance for credit losses 186,481 131,251 186,481 131,251 144,090 137,597 147,028 141,798
Loans receivable 10,760   10,760     14,072    
Gross loans receivable 1,682,710   1,682,710     1,328,461    
Consumer and other loans: | CCBX                
Financing Receivable, Allowance for Credit Loss [Line Items]                
Gross loans receivable 918,779   918,779     691,708    
Consumer and other loans: | Community Bank                
Financing Receivable, Allowance for Credit Loss [Line Items]                
90 Days or More Past Due and Still Accruing 0   0     0    
Gross loans receivable 10,760   10,760     14,072    
Community Bank                
Financing Receivable, Allowance for Credit Loss [Line Items]                
Overdrafts included in loans 19   19     10    
CCBX                
Financing Receivable, Allowance for Credit Loss [Line Items]                
Proceeds from sales of loans held for sale     7,840,000          
Overdrafts included in loans $ 35,500   $ 35,500     16,800    
Threshold period for past due loans (in days) 180 days   180 days          
Valuation adjustment     $ 46,000          
Consumer Portfolio Segment | Installment/Closed-End Consumer Loans                
Financing Receivable, Allowance for Credit Loss [Line Items]                
Threshold period for past due loans (in days) 120 days   120 days          
Consumer Portfolio Segment | Revolving/Open-End Consumer Loans                
Financing Receivable, Allowance for Credit Loss [Line Items]                
Threshold period for past due loans (in days) 180 days   180 days          
Commercial and industrial loans | Community Bank                
Financing Receivable, Allowance for Credit Loss [Line Items]                
90 Days or More Past Due and Still Accruing $ 0   $ 0     0    
Gross loans receivable 237,176   237,176     224,439    
Construction, land and land development loans                
Financing Receivable, Allowance for Credit Loss [Line Items]                
90 Days or More Past Due and Still Accruing              
Allowance for credit losses 3,990 5,265 3,990 5,265 6,101 6,580 4,531 3,439
Gross loans receivable              
Construction, land and land development loans | Community Bank                
Financing Receivable, Allowance for Credit Loss [Line Items]                
90 Days or More Past Due and Still Accruing 0   0     0    
Gross loans receivable 221,562   221,562     222,075    
Real Estate Portfolio Segment | Commercial real estate loans                
Financing Receivable, Allowance for Credit Loss [Line Items]                
Allowance for credit losses 5,712 $ 7,300 5,712 $ 7,300 $ 6,010 5,496 $ 8,110 $ 8,456
Loans receivable 1,319,798   1,319,798     1,285,856    
Real Estate Portfolio Segment | Commercial real estate loans | Community Bank                
Financing Receivable, Allowance for Credit Loss [Line Items]                
90 Days or More Past Due and Still Accruing 0   0     0    
Gross loans receivable 1,319,798   1,319,798     1,285,856    
CCBX Loans                
Financing Receivable, Allowance for Credit Loss [Line Items]                
Consumer and other loans 1,670,000   1,670,000     1,310,000    
Commercial and industrial loans 1,400   1,400     2,300    
Residential real estate loans 324,900   324,900     264,100    
CCBX Loans | Commercial and industrial loans                
Financing Receivable, Allowance for Credit Loss [Line Items]                
Gross loans receivable 229,500   229,500     229,600    
CCBX Loans | Consumer Loan                
Financing Receivable, Allowance for Credit Loss [Line Items]                
Purchased loans 122,800   122,800     134,900    
Consumer and other loans 121,400   121,400     132,600    
Credit cards                
Financing Receivable, Allowance for Credit Loss [Line Items]                
Proceeds from sales of loans held for sale     6,310,000          
Capital call lines                
Financing Receivable, Allowance for Credit Loss [Line Items]                
Commercial and industrial loans 204,800   204,800     210,500    
Unsecured C C B X Loans                
Financing Receivable, Allowance for Credit Loss [Line Items]                
Commercial and industrial loans $ 24,600   $ 24,600     $ 19,200