v3.26.1
Segment 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 $ 107,038 $ 93,093 $ 208,542 $ 172,243  
Interest expense (64,616) (56,573) (124,845) (105,334)  
Funds transfer pricing 0 0 0 0  
Net interest income 42,422 36,520 83,697 66,909  
Provision (benefit) for credit losses 210 583 (235) 1,877  
Net interest income after provision (benefit) for credit losses and unfunded commitments 42,212 35,937 83,932 65,032  
Noninterest income 21,894 22,438 44,039 45,312  
Salaries and employee benefits (25,026) (22,234) (49,379) (42,677)  
Occupancy and equipment (744) (918) (1,565) (1,890)  
Other noninterest expense (9,449) (8,570) (18,711) (16,527)  
Noninterest expense (35,219) (31,722) (69,655) (61,094)  
Expense allocation 0 0 0 0  
Net income before taxes 28,887 26,653 58,316 49,250  
Income tax expense (7,141) (6,309) (14,415) (11,658)  
Net income before preferred dividends 21,746 20,344 43,901 37,592  
Average balance sheet assets 7,416,857 6,110,405 7,220,475 5,731,260  
Period end assets 7,529,951 6,430,894 7,529,951 6,430,894 $ 7,022,825
Retail Banking          
Segment Reporting [Line Items]          
Interest income 46,033 47,976 91,740 95,438  
Interest expense (64,616) (56,573) (124,845) (105,334)  
Funds transfer pricing 39,092 30,020 73,540 50,786  
Net interest income 20,509 21,423 40,435 40,890  
Provision (benefit) for credit losses 179 414 (440) 1,405  
Net interest income after provision (benefit) for credit losses and unfunded commitments 20,330 21,009 40,875 39,485  
Noninterest income 19,588 21,083 39,763 42,816  
Salaries and employee benefits (22,459) (20,483) (44,084) (39,413)  
Occupancy and equipment (728) (731) (1,530) (1,851)  
Other noninterest expense (9,217) (8,521) (18,333) (16,196)  
Noninterest expense (32,404) (29,735) (63,947) (57,460)  
Expense allocation 1,462 1,321 2,949 2,474  
Net income before taxes 8,976 13,678 19,640 27,315  
Income tax expense (2,219) (3,238) (4,854) (6,466)  
Net income before preferred dividends 6,757 10,440 14,786 20,849  
Average balance sheet assets 3,561,045 3,551,528 3,574,871 3,552,020  
Period end assets 3,592,030 3,539,226 3,592,030 3,539,226  
MPP          
Segment Reporting [Line Items]          
Interest income 61,005 45,117 116,802 76,805  
Interest expense 0 0 0 0  
Funds transfer pricing (39,092) (30,020) (73,540) (50,786)  
Net interest income 21,913 15,097 43,262 26,019  
Provision (benefit) for credit losses 31 169 205 472  
Net interest income after provision (benefit) for credit losses and unfunded commitments 21,882 14,928 43,057 25,547  
Noninterest income 2,306 1,355 4,276 2,496  
Salaries and employee benefits (2,567) (1,751) (5,295) (3,264)  
Occupancy and equipment (16) (187) (35) (39)  
Other noninterest expense (232) (49) (378) (331)  
Noninterest expense (2,815) (1,987) (5,708) (3,634)  
Expense allocation (1,462) (1,321) (2,949) (2,474)  
Net income before taxes 19,911 12,975 38,676 21,935  
Income tax expense (4,922) (3,071) (9,561) (5,192)  
Net income before preferred dividends 14,989 9,904 29,115 16,743  
Average balance sheet assets 3,855,812 2,558,877 3,645,604 2,179,240  
Period end assets $ 3,937,921 $ 2,891,668 $ 3,937,921 $ 2,891,668