v3.26.1
Segment Information - Schedule of Segment Reporting Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Segment Reporting [Line Items]          
Interest income $ 230,016 $ 116,921 $ 346,142 $ 227,368  
Interest expense 86,821 38,422 120,168 74,391  
Net interest income 143,195 78,499 225,974 152,977  
Provision for (benefit from) credit losses 40,400 4,500 48,650 8,300  
Noninterest income:          
Deposit account service fees 2,292 2,016 4,388 4,043  
Treasury management service fees 5,067 4,333 9,680 8,527  
Credit and debit card fees 2,952 2,728 5,665 5,314  
Trust and investment advisory fees 9,413 1,473 10,902 2,894  
Mortgage banking services, net 15,958 13,274 30,273 22,329  
Other noninterest income 5,266 3,249 7,215 5,695  
Total noninterest income 40,948 27,073 68,123 48,802  
Noninterest expense:          
Salary and employee benefits 68,744 43,921 116,100 83,482  
Occupancy, equipment and software 15,504 9,541 25,510 19,077  
Customer service costs 2,742 0 2,742 0  
Amortization of intangible assets 4,237 578 4,744 1,206  
Merger related expenses 57,559 285 60,240 285  
Other noninterest expenses 22,926 13,785 37,717 26,782  
Total noninterest expense 171,712 68,110 247,053 130,832  
(Loss) income before income taxes (27,969) 32,962 (1,606) 62,647  
Other Information          
Depreciation and amortization on premises and equipment 2,794 2,068 4,931 4,103  
Identifiable assets 15,717,985 8,435,861 15,717,985 8,435,861 $ 8,485,162
Operating Segments | Banking          
Segment Reporting [Line Items]          
Interest income 216,631 103,766 318,844 202,145  
Interest expense 79,428 32,517 107,421 62,743  
Net interest income 137,203 71,249 211,423 139,402  
Provision for (benefit from) credit losses 41,708 4,462 49,778 8,524  
Noninterest income:          
Deposit account service fees 2,281 2,010 4,369 4,030  
Treasury management service fees 5,007 4,266 9,552 8,394  
Credit and debit card fees 2,925 2,710 5,620 5,278  
Trust and investment advisory fees (67) 0 (67) 0  
Mortgage banking services, net (652) (631) (1,308) (1,253)  
Other noninterest income 5,133 3,247 7,074 5,742  
Total noninterest income 14,627 11,602 25,240 22,191  
Noninterest expense:          
Salary and employee benefits 45,985 30,906 78,599 60,077  
Occupancy, equipment and software 13,619 8,340 22,064 16,765  
Customer service costs 2,742   2,742    
Amortization of intangible assets 3,506 546 4,013 1,143  
Merger related expenses 40,905 285 43,227 285  
Other noninterest expenses 13,849 7,454 21,283 14,102  
Total noninterest expense 120,606 47,531 171,928 92,372  
(Loss) income before income taxes (10,484) 30,858 14,957 60,697  
Other Information          
Depreciation and amortization on premises and equipment 2,734 2,023 4,833 4,015  
Identifiable assets 14,228,523 7,007,535 14,228,523 7,007,535  
Operating Segments | Private Wealth Banking          
Segment Reporting [Line Items]          
Interest income 134 1,307 1,240 2,404  
Interest expense (1,726) (928) (2,656) (2,016)  
Net interest income 1,860 2,235 3,896 4,420  
Provision for (benefit from) credit losses 0 0 0 0  
Noninterest income:          
Deposit account service fees 11 6 19 13  
Treasury management service fees 60 67 128 133  
Credit and debit card fees 27 17 45 34  
Trust and investment advisory fees 9,480 1,473 10,969 2,894  
Mortgage banking services, net 0 0 0 0  
Other noninterest income 133 2 141 (2)  
Total noninterest income 9,711 1,565 11,302 3,072  
Noninterest expense:          
Salary and employee benefits 8,160 2,084 10,204 3,969  
Occupancy, equipment and software 534 276 799 531  
Customer service costs 0   0    
Amortization of intangible assets 731 32 731 63  
Merger related expenses 805 0 805 0  
Other noninterest expenses 3,110 1,570 4,967 3,269  
Total noninterest expense 13,340 3,962 17,506 7,832  
(Loss) income before income taxes (1,769) (162) (2,308) (340)  
Other Information          
Depreciation and amortization on premises and equipment 4 3 8 7  
Identifiable assets 111,120 93,596 111,120 93,596  
Operating Segments | Mortgage Operations          
Segment Reporting [Line Items]          
Interest income 13,185 11,840 25,985 22,803  
Interest expense 6,035 5,660 11,795 11,291  
Net interest income 7,150 6,180 14,190 11,512  
Provision for (benefit from) credit losses (1,308) 38 (1,128) (224)  
Noninterest income:          
Deposit account service fees 0 0 0 0  
Treasury management service fees 0 0 0 0  
Credit and debit card fees 0 1 0 2  
Trust and investment advisory fees 0 0 0 0  
Mortgage banking services, net 16,610 13,905 31,581 23,582  
Other noninterest income 0 0 0 (45)  
Total noninterest income 16,610 13,906 31,581 23,539  
Noninterest expense:          
Salary and employee benefits 12,882 10,280 24,602 18,147  
Occupancy, equipment and software 1,281 866 2,510 1,661  
Customer service costs 0   0    
Amortization of intangible assets 0 0 0 0  
Merger related expenses 0 0 0 0  
Other noninterest expenses 5,378 4,351 10,473 8,569  
Total noninterest expense 19,541 15,497 37,585 28,377  
(Loss) income before income taxes 5,527 4,551 9,314 6,898  
Other Information          
Depreciation and amortization on premises and equipment 56 42 90 81  
Identifiable assets 1,268,746 1,199,850 1,268,746 1,199,850  
Corporate          
Segment Reporting [Line Items]          
Interest income 66 8 73 16  
Interest expense 3,084 1,173 3,608 2,373  
Net interest income (3,018) (1,165) (3,535) (2,357)  
Provision for (benefit from) credit losses 0 0 0 0  
Noninterest income:          
Deposit account service fees 0 0 0 0  
Treasury management service fees 0 0 0 0  
Credit and debit card fees 0 0 0 0  
Trust and investment advisory fees 0 0 0 0  
Mortgage banking services, net 0 0 0 0  
Other noninterest income 0 0 0 0  
Total noninterest income 0 0 0 0  
Noninterest expense:          
Salary and employee benefits 1,717 651 2,695 1,289  
Occupancy, equipment and software 70 59 137 120  
Customer service costs 0   0    
Amortization of intangible assets 0 0 0 0  
Merger related expenses 15,849 0 16,208 0  
Other noninterest expenses 589 410 994 842  
Total noninterest expense 18,225 1,120 20,034 2,251  
(Loss) income before income taxes (21,243) (2,285) (23,569) (4,608)  
Other Information          
Depreciation and amortization on premises and equipment 0 0 0 0  
Identifiable assets $ 109,596 $ 134,880 $ 109,596 $ 134,880