v3.26.1
Loans and Leases Held for Investment and Credit Quality - Schedule of Total Loans and Leases Held for Investment and Aging Analysis of Portfolio Segments (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases $ 12,668,670 $ 12,009,834
Retained Loan Discount and Net Deferred Costs (37,811) (36,212)
Total 12,630,859 11,973,622
Receivables Not Under the Fair Value Option    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 12,436,582 11,749,209
Receivables Not Under the Fair Value Option | Small Business Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 7,696,553 7,313,903
Receivables Not Under the Fair Value Option | Commercial Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 4,740,029 4,435,306
Receivables Under The Fair Value Option    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 232,088 260,625
Total Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 410,220 404,519
Current or Less than 30 Days Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 12,026,362 11,344,690
30-89 Days Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 94,650 49,361
90 Days or More Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 315,570 355,158
Guaranteed Balance    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total $ 3,265,665 $ 3,379,331
Total Carried at Amortized Cost (in percent) 25.70% 28.20%
Loans Accounted for Under the Fair Value Option (in percent) 27.70% 26.60%
Total Loans and Leases (in percent) 25.80% 28.10%
Guaranteed Balance | Receivables Not Under the Fair Value Option    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total $ 3,201,402 $ 3,309,886
Guaranteed Balance | Receivables Under The Fair Value Option    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total $ 64,263 $ 69,445
Guaranteed Balance | Total Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Past Due (in percent) 73.20% 82.90%
Guaranteed Balance | Total Past Due | Receivables Not Under the Fair Value Option    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total $ 300,184 $ 335,334
Guaranteed Balance | Current or Less than 30 Days Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Past Due (in percent) 24.10% 26.20%
Guaranteed Balance | Current or Less than 30 Days Past Due | Receivables Not Under the Fair Value Option    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total $ 2,901,218 $ 2,974,552
Guaranteed Balance | 30-89 Days Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Past Due (in percent) 63.70% 68.10%
Guaranteed Balance | 30-89 Days Past Due | Receivables Not Under the Fair Value Option    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total $ 60,297 $ 33,597
Guaranteed Balance | 90 Days or More Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Past Due (in percent) 76.00% 85.00%
Guaranteed Balance | 90 Days or More Past Due | Receivables Not Under the Fair Value Option    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total $ 239,887 $ 301,737
Commercial & Industrial    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 5,793,351 5,603,327
Commercial & Industrial | Small Business Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 2,612,385 2,608,212
Commercial & Industrial | Commercial Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 3,180,966 2,995,115
Commercial & Industrial | Receivables Not Under the Fair Value Option    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 5,680,485 5,474,963
Commercial & Industrial | Receivables Not Under the Fair Value Option | Small Business Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 2,539,041 2,520,680
Commercial & Industrial | Receivables Not Under the Fair Value Option | Commercial Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 3,141,444 2,954,283
Commercial & Industrial | Receivables Under The Fair Value Option    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 112,866 128,364
Commercial & Industrial | Receivables Under The Fair Value Option | Small Business Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 73,344 87,532
Commercial & Industrial | Receivables Under The Fair Value Option | Commercial Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 39,522 40,832
Commercial & Industrial | Total Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 208,607 271,055
Commercial & Industrial | Total Past Due | Small Business Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 162,203 150,496
Commercial & Industrial | Total Past Due | Commercial Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 46,404 120,559
Commercial & Industrial | Current or Less than 30 Days Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 5,471,878 5,203,908
Commercial & Industrial | Current or Less than 30 Days Past Due | Small Business Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 2,376,838 2,370,184
Commercial & Industrial | Current or Less than 30 Days Past Due | Commercial Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 3,095,040 2,833,724
Commercial & Industrial | 30-89 Days Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 46,340 32,108
Commercial & Industrial | 30-89 Days Past Due | Small Business Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 43,389 23,406
Commercial & Industrial | 30-89 Days Past Due | Commercial Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 2,951 8,702
Commercial & Industrial | 90 Days or More Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 162,267 238,947
Commercial & Industrial | 90 Days or More Past Due | Small Business Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 118,814 127,090
Commercial & Industrial | 90 Days or More Past Due | Commercial Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 43,453 111,857
Construction & Development    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 804,684 819,680
Construction & Development | Small Business Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 710,091 750,142
Construction & Development | Commercial Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 94,593 69,538
Construction & Development | Receivables Not Under the Fair Value Option    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 804,684 819,680
Construction & Development | Receivables Not Under the Fair Value Option | Small Business Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 710,091 750,142
Construction & Development | Receivables Not Under the Fair Value Option | Commercial Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 94,593 69,538
Construction & Development | Receivables Under The Fair Value Option    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 0 0
Construction & Development | Receivables Under The Fair Value Option | Small Business Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 0 0
Construction & Development | Receivables Under The Fair Value Option | Commercial Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 0 0
Construction & Development | Total Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 10,746 1,025
Construction & Development | Total Past Due | Small Business Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 10,746 1,025
Construction & Development | Total Past Due | Commercial Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 0 0
Construction & Development | Current or Less than 30 Days Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 793,938 818,655
Construction & Development | Current or Less than 30 Days Past Due | Small Business Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 699,345 749,117
Construction & Development | Current or Less than 30 Days Past Due | Commercial Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 94,593 69,538
Construction & Development | 30-89 Days Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 9,213 0
Construction & Development | 30-89 Days Past Due | Small Business Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 9,213 0
Construction & Development | 30-89 Days Past Due | Commercial Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 0 0
Construction & Development | 90 Days or More Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 1,533 1,025
Construction & Development | 90 Days or More Past Due | Small Business Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 1,533 1,025
Construction & Development | 90 Days or More Past Due | Commercial Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 0 0
Commercial Real Estate    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 5,284,118 4,887,789
Commercial Real Estate | Small Business Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 3,766,604 3,460,392
Commercial Real Estate | Commercial Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 1,517,514 1,427,397
Commercial Real Estate | Receivables Not Under the Fair Value Option    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 5,186,940 4,780,001
Commercial Real Estate | Receivables Not Under the Fair Value Option | Small Business Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 3,682,948 3,368,516
Commercial Real Estate | Receivables Not Under the Fair Value Option | Commercial Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 1,503,992 1,411,485
Commercial Real Estate | Receivables Under The Fair Value Option    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 97,178 107,788
Commercial Real Estate | Receivables Under The Fair Value Option | Small Business Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 83,656 91,876
Commercial Real Estate | Receivables Under The Fair Value Option | Commercial Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 13,522 15,912
Commercial Real Estate | Total Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 179,125 128,599
Commercial Real Estate | Total Past Due | Small Business Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 147,752 100,729
Commercial Real Estate | Total Past Due | Commercial Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 31,373 27,870
Commercial Real Estate | Current or Less than 30 Days Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 5,007,815 4,651,402
Commercial Real Estate | Current or Less than 30 Days Past Due | Small Business Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 3,535,196 3,267,787
Commercial Real Estate | Current or Less than 30 Days Past Due | Commercial Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 1,472,619 1,383,615
Commercial Real Estate | 30-89 Days Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 32,795 17,253
Commercial Real Estate | 30-89 Days Past Due | Small Business Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 32,795 12,640
Commercial Real Estate | 30-89 Days Past Due | Commercial Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 0 4,613
Commercial Real Estate | 90 Days or More Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 146,330 111,346
Commercial Real Estate | 90 Days or More Past Due | Small Business Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 114,957 88,089
Commercial Real Estate | 90 Days or More Past Due | Commercial Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 31,373 23,257
Commercial Land    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 786,517 699,038
Commercial Land | Small Business Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 786,517 699,038
Commercial Land | Receivables Not Under the Fair Value Option    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 764,473 674,565
Commercial Land | Receivables Not Under the Fair Value Option | Small Business Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 764,473 674,565
Commercial Land | Receivables Under The Fair Value Option    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 22,044 24,473
Commercial Land | Receivables Under The Fair Value Option | Small Business Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 22,044 24,473
Commercial Land | Total Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 11,742 3,840
Commercial Land | Total Past Due | Small Business Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 11,742 3,840
Commercial Land | Current or Less than 30 Days Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 752,731 670,725
Commercial Land | Current or Less than 30 Days Past Due | Small Business Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 752,731 670,725
Commercial Land | 30-89 Days Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 6,302 0
Commercial Land | 30-89 Days Past Due | Small Business Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 6,302 0
Commercial Land | 90 Days or More Past Due    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases 5,440 3,840
Commercial Land | 90 Days or More Past Due | Small Business Banking    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total Loans and Leases $ 5,440 $ 3,840