| Allowance for Credit Losses by Portfolio Segment | The following table details the information on the allowance for credit losses by portfolio segment as of and for the three months ended September 30, 2023 and 2022:   
       
        |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
        |   |   | Real Estate |   |   | Commercial and Industrial |   |   | Equipment Financing Agreements |   |   | Total |   |  
        |   |   | (in thousands) |   |  
        | September 30, 2023 |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Balance at beginning of period |   | $ | 43,054 |   |   | $ | 16,028 |   |   | $ | 11,942 |   |   |   | 71,024 |   |  
        | Charge-offs |   |   | (216 | ) |   |   | (6,323 | ) |   |   | (2,831 | ) |   |   | (9,370 | ) |  
        | Recoveries |   |   | 50 |   |   |   | 141 |   |   |   | 301 |   |   |   | 492 |   |  
        | Provision (recovery) for credit losses |   |   | 948 |   |   |   | 1,396 |   |   |   | 2,823 |   |   |   | 5,167 |   |  
        | Ending balance |   | $ | 43,836 |   |   | $ | 11,242 |   |   | $ | 12,235 |   |   | $ | 67,313 |   |  
        |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | September 30, 2022 |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Balance at beginning of period |   | $ | 46,112 |   |   | $ | 14,275 |   |   | $ | 12,680 |   |   | $ | 73,067 |   |  
        | Charge-offs |   |   | (1,356 | ) |   |   | (8 | ) |   |   | (716 | ) |   |   | (2,080 | ) |  
        | Recoveries |   |   | 373 |   |   |   | 228 |   |   |   | 369 |   |   |   | 970 |   |  
        | Provision (recovery) for credit losses |   |   | 395 |   |   |   | 381 |   |   |   | (1,149 | ) |   |   | (373 | ) |  
        | Ending balance |   | $ | 45,524 |   |   | $ | 14,876 |   |   | $ | 11,184 |   |   | $ | 71,584 |   |    The following table details the information on the allowance for credit losses by portfolio segment as of and for the nine months ended September 30, 2023 and 2022:   
       
        |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
        |   |   | Real Estate |   |   | Commercial and Industrial |   |   | Equipment Financing Agreements |   |   | Total |   |  
        |   |   | (in thousands) |   |  
        | September 30, 2023 |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Balance at beginning of period |   | $ | 44,026 |   |   | $ | 15,267 |   |   | $ | 12,230 |   |   |   | 71,523 |   |  
        | Charge-offs |   |   | (627 | ) |   |   | (6,635 | ) |   |   | (7,052 | ) |   |   | (14,314 | ) |  
        | Recoveries |   |   | 180 |   |   |   | 931 |   |   |   | 1,131 |   |   |   | 2,242 |   |  
        | Provision (recovery) for credit losses |   |   | 257 |   |   |   | 1,679 |   |   |   | 5,926 |   |   |   | 7,862 |   |  
        | Ending balance |   | $ | 43,836 |   |   | $ | 11,242 |   |   | $ | 12,235 |   |   | $ | 67,313 |   |  
        |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | September 30, 2022 |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Balance at beginning of period |   | $ | 48,890 |   |   | $ | 12,418 |   |   | $ | 11,249 |   |   | $ | 72,557 |   |  
        | Charge-offs |   |   | (1,886 | ) |   |   | (87 | ) |   |   | (1,548 | ) |   |   | (3,521 | ) |  
        | Recoveries |   |   | 632 |   |   |   | 679 |   |   |   | 1,117 |   |   |   | 2,428 |   |  
        | Provision (recovery) for credit losses |   |   | (2,112 | ) |   |   | 1,866 |   |   |   | 366 |   |   |   | 120 |   |  
        | Ending balance |   | $ | 45,524 |   |   | $ | 14,876 |   |   | $ | 11,184 |   |   | $ | 71,584 |   |    The table below illustrates the allowance for credit losses by loan portfolio segment and each loan portfolio segment as a percentage of total loans.   
       
        |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
        |   |   | September 30, 2023 |   |   | December 31, 2022 |   |  
        |   |   | Allowance Amount |   |   | Percentage of Total Allowance |   |   | Total Loans |   |   | Percentage of Total Loans |   |   | Allowance Amount |   |   | Percentage of Total Allowance |   |   | Total Loans |   |   | Percentage of Total Loans |   |  
        |   |   | (dollars in thousands) |   |  
        | Real estate loans: |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Commercial property |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Retail |   | $ | 10,083 |   |   |   | 15.0 | % |   | $ | 1,097,650 |   |   |   | 18.3 | % |   | $ | 7,872 |   |   |   | 11.0 | % |   | $ | 1,023,608 |   |   |   | 17.2 | % |  
        | Hospitality |   |   | 15,083 |   |   |   | 22.4 |   |   |   | 705,735 |   |   |   | 11.7 |   |   |   | 13,407 |   |   |   | 18.7 |   |   |   | 646,893 |   |   |   | 10.8 |   |  
        | Office |   |   | 2,884 |   |   |   | 4.3 |   |   |   | 575,319 |   |   |   | 9.6 |   |   |   | 2,293 |   |   |   | 3.2 |   |   |   | 499,946 |   |   |   | 8.4 |   |  
        | Other |   |   | 8,321 |   |   |   | 12.3 |   |   |   | 1,309,507 |   |   |   | 21.7 |   |   |   | 13,056 |   |   |   | 18.3 |   |   |   | 1,553,729 |   |   |   | 26.0 |   |  
        | Total commercial property loans |   |   | 36,371 |   |   |   | 54.0 |   |   |   | 3,688,211 |   |   |   | 61.3 |   |   |   | 36,628 |   |   |   | 51.2 |   |   |   | 3,724,176 |   |   |   | 62.4 |   |  
        | Construction |   |   | 2,594 |   |   |   | 3.9 |   |   |   | 84,804 |   |   |   | 1.4 |   |   |   | 4,022 |   |   |   | 5.7 |   |   |   | 109,205 |   |   |   | 1.8 |   |  
        | Residential |   |   | 4,871 |   |   |   | 7.2 |   |   |   | 926,326 |   |   |   | 15.4 |   |   |   | 3,376 |   |   |   | 4.7 |   |   |   | 734,472 |   |   |   | 12.4 |   |  
        | Total real estate loans |   |   | 43,836 |   |   |   | 65.1 |   |   |   | 4,699,341 |   |   |   | 78.1 |   |   |   | 44,026 |   |   |   | 61.6 |   |   |   | 4,567,853 |   |   |   | 76.6 |   |  
        | Commercial and industrial loans |   |   | 11,242 |   |   |   | 16.7 |   |   |   | 728,792 |   |   |   | 12.1 |   |   |   | 15,267 |   |   |   | 21.3 |   |   |   | 804,492 |   |   |   | 13.4 |   |  
        | Equipment financing agreements |   |   | 12,235 |   |   |   | 18.2 |   |   |   | 592,652 |   |   |   | 9.8 |   |   |   | 12,230 |   |   |   | 17.1 |   |   |   | 594,788 |   |   |   | 10.0 |   |  
        | Total |   | $ | 67,313 |   |   |   | 100.0 | % |   | $ | 6,020,785 |   |   |   | 100.0 | % |   | $ | 71,523 |   |   |   | 100.0 | % |   | $ | 5,967,133 |   |   |   | 100.0 | % |  | 
| Credit Quality of Loan Portfolio | 
       
        |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
        |   |   | Term Loans |   |   |   |   |   |   |   |  
        |   |   | Amortized Cost Basis by Origination Year (1) |   |   |   |   |   |   |   |  
        |   |   | 2023 |   |   | 2022 |   |   | 2021 |   |   | 2020 |   |   | 2019 |   |   | Prior |   |   | RevolvingLoans
 Amortized
 Cost Basis
 |   |   | Total |   |  
        |   |   | (in thousands) |   |  
        | September 30, 2023 |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Real estate loans: |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Commercial property |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Risk Rating |   |   |   |   |   |   |   |   |   |   | ` |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Pass / Pass-Watch |   | $ | 511,148 |   |   | $ | 1,013,414 |   |   | $ | 863,200 |   |   | $ | 578,433 |   |   | $ | 384,562 |   |   | $ | 264,284 |   |   | $ | 26,171 |   |   | $ | 3,641,212 |   |  
        | Special Mention |   |   | 5,194 |   |   |   | 4,032 |   |   |   | 10,141 |   |   |   | 4,328 |   |   |   | 715 |   |   |   | 1,556 |   |   |   | 1,700 |   |   |   | 27,666 |   |  
        | Classified |   |   | 4,430 |   |   |   | 977 |   |   |   | 4,936 |   |   |   |   |   |   | 5,606 |   |   |   | 3,384 |   |   |   |   |   |   | 19,333 |   |  
        | Total commercial property |   |   | 520,772 |   |   |   | 1,018,423 |   |   |   | 878,277 |   |   |   | 582,761 |   |   |   | 390,883 |   |   |   | 269,224 |   |   |   | 27,871 |   |   |   | 3,688,211 |   |  
        | YTD gross charge-offs |   |   | — |   |   |   | — |   |   |   | — |   |   |   | 411 |   |   |   | — |   |   |   | 216 |   |   |   | — |   |   |   | 627 |   |  
        | YTD net charge-offs |   |   | — |   |   |   | — |   |   |   | — |   |   |   | 407 |   |   |   | — |   |   |   | 46 |   |   |   | — |   |   |   | 453 |   |  
        |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Construction |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Risk Rating |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Pass / Pass-Watch |   |   | 38,129 |   |   |   | — |   |   |   | 18,375 |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | 56,504 |   |  
        | Special Mention |   |   | — |   |   |   | — |   |   |   | 28,300 |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | 28,300 |   |  
        | Classified |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |  
        | Total construction |   |   | 38,129 |   |   |   | — |   |   |   | 46,675 |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | 84,804 |   |  
        | YTD gross charge-offs |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |  
        | YTD net charge-offs |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |  
        |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Residential |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Risk Rating |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Pass / Pass-Watch |   |   | 241,830 |   |   |   | 381,167 |   |   |   | 160,856 |   |   |   | 12,791 |   |   |   | 221 |   |   |   | 124,047 |   |   |   | 4,911 |   |   |   | 925,823 |   |  
        | Special Mention |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | 500 |   |   |   | 500 |   |  
        | Classified |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | 3 |   |   |   | — |   |   |   | 3 |   |  
        | Total residential |   |   | 241,830 |   |   |   | 381,167 |   |   |   | 160,856 |   |   |   | 12,791 |   |   |   | 221 |   |   |   | 124,050 |   |   |   | 5,411 |   |   |   | 926,326 |   |  
        | YTD gross charge-offs |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |  
        | YTD net charge-offs |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | (6 | ) |   |   | — |   |   |   | (6 | ) |  
        |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Total real estate loans |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Risk Rating |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Pass / Pass-Watch |   |   | 791,107 |   |   |   | 1,394,581 |   |   |   | 1,042,431 |   |   |   | 591,224 |   |   |   | 384,783 |   |   |   | 388,331 |   |   |   | 31,082 |   |   |   | 4,623,539 |   |  
        | Special Mention |   |   | 5,194 |   |   |   | 4,032 |   |   |   | 38,441 |   |   |   | 4,328 |   |   |   | 715 |   |   |   | 1,556 |   |   |   | 2,200 |   |   |   | 56,466 |   |  
        | Classified |   |   | 4,430 |   |   |   | 977 |   |   |   | 4,936 |   |   |   | — |   |   |   | 5,606 |   |   |   | 3,387 |   |   |   | — |   |   |   | 19,336 |   |  
        | Total real estate loans |   |   | 800,731 |   |   |   | 1,399,590 |   |   |   | 1,085,808 |   |   |   | 595,552 |   |   |   | 391,104 |   |   |   | 393,274 |   |   |   | 33,282 |   |   |   | 4,699,341 |   |  
        | YTD gross charge-offs |   |   | — |   |   |   | — |   |   |   | — |   |   |   | 411 |   |   |   | — |   |   |   | 216 |   |   |   | — |   |   |   | 627 |   |  
        | YTD net charge-offs |   |   | — |   |   |   | — |   |   |   | — |   |   |   | 407 |   |   |   | — |   |   |   | 40 |   |   |   | — |   |   |   | 447 |   |  
        |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Commercial and industrial loans: |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Risk Rating |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Pass / Pass-Watch |   |   | 142,240 |   |   |   | 176,815 |   |   |   | 88,316 |   |   |   | 33,403 |   |   |   | 11,156 |   |   |   | 10,047 |   |   |   | 240,951 |   |   |   | 702,928 |   |  
        | Special Mention |   |   | — |   |   |   | 16,128 |   |   |   | — |   |   |   | 104 |   |   |   | — |   |   |   | 3,775 |   |   |   | — |   |   |   | 20,007 |   |  
        | Classified |   |   | 378 |   |   |   | — |   |   |   | — |   |   |   | 84 |   |   |   | 46 |   |   |   | 210 |   |   |   | 5,139 |   |   |   | 5,857 |   |  
        | Total commercial and industrial loans |   |   | 142,618 |   |   |   | 192,943 |   |   |   | 88,316 |   |   |   | 33,591 |   |   |   | 11,202 |   |   |   | 14,032 |   |   |   | 246,090 |   |   |   | 728,792 |   |  
        | YTD gross charge-offs |   |   | — |   |   |   | 17 |   |   |   | — |   |   |   | — |   |   |   | 110 |   |   |   | 388 |   |   |   | 6,120 |   |   |   | 6,635 |   |  
        | YTD net charge-offs |   |   | — |   |   |   | 5 |   |   |   | (5 | ) |   |   | — |   |   |   | 107 |   |   |   | (522 | ) |   |   | 6,119 |   |   |   | 5,704 |   |  
        |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Equipment financing agreements: |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Risk Rating |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Pass / Pass-Watch |   |   | 174,377 |   |   |   | 234,753 |   |   |   | 115,310 |   |   |   | 29,380 |   |   |   | 25,457 |   |   |   | 5,434 |   |   |   | — |   |   |   | 584,711 |   |  
        | Special Mention |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |  
        | Classified |   |   | 329 |   |   |   | 3,630 |   |   |   | 2,719 |   |   |   | 167 |   |   |   | 830 |   |   |   | 266 |   |   |   | — |   |   |   | 7,941 |   |  
        | Total equipment financing agreements |   |   | 174,706 |   |   |   | 238,383 |   |   |   | 118,029 |   |   |   | 29,547 |   |   |   | 26,287 |   |   |   | 5,700 |   |   |   | — |   |   |   | 592,652 |   |  
        | YTD gross charge-offs |   |   | 56 |   |   |   | 3,030 |   |   |   | 2,732 |   |   |   | 294 |   |   |   | 725 |   |   |   | 215 |   |   |   | — |   |   |   | 7,052 |   |  
        | YTD net charge-offs |   |   | 56 |   |   |   | 2,961 |   |   |   | 2,455 |   |   |   | 217 |   |   |   | 335 |   |   |   | (103 | ) |   |   | — |   |   |   | 5,921 |   |  
        |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Total loans receivable: |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Risk Rating |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Pass / Pass-Watch |   |   | 1,107,724 |   |   |   | 1,806,149 |   |   |   | 1,246,057 |   |   |   | 654,007 |   |   |   | 421,396 |   |   |   | 403,812 |   |   |   | 272,033 |   |   |   | 5,911,178 |   |  
        | Special Mention |   |   | 5,194 |   |   |   | 20,160 |   |   |   | 38,441 |   |   |   | 4,432 |   |   |   | 715 |   |   |   | 5,331 |   |   |   | 2,200 |   |   |   | 76,473 |   |  
        | Classified |   |   | 5,137 |   |   |   | 4,607 |   |   |   | 7,655 |   |   |   | 251 |   |   |   | 6,482 |   |   |   | 3,863 |   |   |   | 5,139 |   |   |   | 33,134 |   |  
        | Total loans receivable |   | $ | 1,118,055 |   |   | $ | 1,830,916 |   |   | $ | 1,292,153 |   |   | $ | 658,690 |   |   | $ | 428,593 |   |   | $ | 413,006 |   |   | $ | 279,372 |   |   | $ | 6,020,785 |   |  
        | YTD gross charge-offs |   |   | 56 |   |   |   | 3,047 |   |   |   | 2,732 |   |   |   | 705 |   |   |   | 835 |   |   |   | 819 |   |   |   | 6,120 |   |   |   | 14,314 |   |  
        | YTD net charge-offs |   |   | 56 |   |   |   | 2,966 |   |   |   | 2,450 |   |   |   | 624 |   |   |   | 442 |   |   |   | (585 | ) |   |   | 6,119 |   |   |   | 12,072 |   |    
(1)Includes extensions, renewals, or modifications of credit contracts, which consist of a new credit decision.   
       
        |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
        |   |   | Term Loans |   |   |   |   |   |   |   |  
        |   |   | Amortized Cost Basis by Origination Year (1) |   |   |   |   |   |   |   |  
        |   |   | 2022 |   |   | 2021 |   |   | 2020 |   |   | 2019 |   |   | 2018 |   |   | Prior |   |   | RevolvingLoans
 Amortized
 Cost Basis
 |   |   | Total |   |  
        |   |   |   |   |  
        | December 31, 2022 |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Real estate loans: |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Commercial property |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Risk Rating |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Pass / Pass-Watch |   | $ | 1,184,361 |   |   | $ | 901,029 |   |   | $ | 600,740 |   |   | $ | 404,786 |   |   | $ | 301,950 |   |   | $ | 207,861 |   |   | $ | 50,877 |   |   | $ | 3,651,604 |   |  
        | Special Mention |   |   | 847 |   |   |   | 13,384 |   |   |   | 5,857 |   |   |   | 7,115 |   |   |   | — |   |   |   | 6,080 |   |   |   | 1,701 |   |   |   | 34,984 |   |  
        | Classified |   |   | — |   |   |   | — |   |   |   | 412 |   |   |   | 4,312 |   |   |   | 12,304 |   |   |   | 20,560 |   |   |   | — |   |   |   | 37,588 |   |  
        | Total commercial property |   |   | 1,185,208 |   |   |   | 914,413 |   |   |   | 607,009 |   |   |   | 416,213 |   |   |   | 314,254 |   |   |   | 234,501 |   |   |   | 52,578 |   |   |   | 3,724,176 |   |  
        |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Construction |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Risk Rating |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Pass / Pass-Watch |   |   | 41,662 |   |   |   | 67,543 |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | 109,205 |   |  
        | Special Mention |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |  
        | Classified |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |  
        | Total construction |   |   | 41,662 |   |   |   | 67,543 |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | 109,205 |   |  
        |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Residential |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Risk Rating |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Pass / Pass-Watch |   |   | 405,975 |   |   |   | 173,236 |   |   |   | 13,102 |   |   |   | 232 |   |   |   | 731 |   |   |   | 134,766 |   |   |   | 5,422 |   |   |   | 733,464 |   |  
        | Special Mention |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | 500 |   |   |   | 500 |   |  
        | Classified |   |   | 12 |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | 496 |   |   |   | — |   |   |   | 508 |   |  
        | Total residential |   |   | 405,987 |   |   |   | 173,236 |   |   |   | 13,102 |   |   |   | 232 |   |   |   | 731 |   |   |   | 135,262 |   |   |   | 5,922 |   |   |   | 734,472 |   |  
        |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Total real estate loans |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Risk Rating |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Pass / Pass-Watch |   |   | 1,631,998 |   |   |   | 1,141,808 |   |   |   | 613,842 |   |   |   | 405,018 |   |   |   | 302,681 |   |   |   | 342,627 |   |   |   | 56,299 |   |   |   | 4,494,273 |   |  
        | Special Mention |   |   | 847 |   |   |   | 13,384 |   |   |   | 5,857 |   |   |   | 7,115 |   |   |   | — |   |   |   | 6,080 |   |   |   | 2,201 |   |   |   | 35,484 |   |  
        | Classified |   |   | 12 |   |   |   | — |   |   |   | 412 |   |   |   | 4,312 |   |   |   | 12,304 |   |   |   | 21,056 |   |   |   | — |   |   |   | 38,096 |   |  
        | Total real estate loans |   |   | 1,632,857 |   |   |   | 1,155,192 |   |   |   | 620,111 |   |   |   | 416,445 |   |   |   | 314,985 |   |   |   | 369,763 |   |   |   | 58,500 |   |   |   | 4,567,853 |   |  
        |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Commercial and industrial loans: |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Risk Rating |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Pass / Pass-Watch |   |   | 368,778 |   |   |   | 100,537 |   |   |   | 39,577 |   |   |   | 24,117 |   |   |   | 7,342 |   |   |   | 12,282 |   |   |   | 205,951 |   |   |   | 758,584 |   |  
        | Special Mention |   |   | — |   |   |   | 9,285 |   |   |   | — |   |   |   | — |   |   |   | 29 |   |   |   | 102 |   |   |   | 34,113 |   |   |   | 43,529 |   |  
        | Classified |   |   | — |   |   |   | — |   |   |   | 171 |   |   |   | 1,097 |   |   |   | 81 |   |   |   | 391 |   |   |   | 639 |   |   |   | 2,379 |   |  
        | Total commercial and industrial loans |   |   | 368,778 |   |   |   | 109,822 |   |   |   | 39,748 |   |   |   | 25,214 |   |   |   | 7,452 |   |   |   | 12,775 |   |   |   | 240,703 |   |   |   | 804,492 |   |  
        |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Equipment financing agreements: |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Risk Rating |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Pass / Pass-Watch |   |   | 305,249 |   |   |   | 165,313 |   |   |   | 46,970 |   |   |   | 52,133 |   |   |   | 17,608 |   |   |   | 1,798 |   |   |   | — |   |   |   | 589,071 |   |  
        | Special Mention |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |  
        | Classified |   |   | 630 |   |   |   | 2,542 |   |   |   | 311 |   |   |   | 1,581 |   |   |   | 565 |   |   |   | 88 |   |   |   | — |   |   |   | 5,717 |   |  
        | Total equipment financing agreements |   |   | 305,879 |   |   |   | 167,855 |   |   |   | 47,281 |   |   |   | 53,714 |   |   |   | 18,173 |   |   |   | 1,886 |   |   |   | — |   |   |   | 594,788 |   |  
        |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Total loans receivable: |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Risk Rating |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Pass / Pass-Watch |   |   | 2,306,025 |   |   |   | 1,407,658 |   |   |   | 700,389 |   |   |   | 481,268 |   |   |   | 327,631 |   |   |   | 356,707 |   |   |   | 262,250 |   |   |   | 5,841,928 |   |  
        | Special Mention |   |   | 847 |   |   |   | 22,669 |   |   |   | 5,857 |   |   |   | 7,115 |   |   |   | 29 |   |   |   | 6,182 |   |   |   | 36,314 |   |   |   | 79,013 |   |  
        | Classified |   |   | 642 |   |   |   | 2,542 |   |   |   | 894 |   |   |   | 6,990 |   |   |   | 12,950 |   |   |   | 21,535 |   |   |   | 639 |   |   |   | 46,192 |   |  
        | Total loans receivable |   | $ | 2,307,514 |   |   | $ | 1,432,869 |   |   | $ | 707,140 |   |   | $ | 495,373 |   |   | $ | 340,610 |   |   | $ | 384,424 |   |   | $ | 299,203 |   |   | $ | 5,967,133 |   |    
(1)Includes extensions, renewals, or modifications of credit contracts, which consist of a new credit decision. Loans by Vintage Year and Payment Performance   
       
        |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
        |   |   | Term Loans |   |   |   |   |   |   |   |  
        |   |   | Amortized Cost Basis by Origination Year (1) |   |   |   |   |   |   |   |  
        |   |   | 2023 |   |   | 2022 |   |   | 2021 |   |   | 2020 |   |   | 2019 |   |   | Prior |   |   | RevolvingLoans
 Amortized
 Cost Basis
 |   |   | Total |   |  
        |   |   | (in thousands) |   |  
        | September 30, 2023 |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Real estate loans: |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Commercial property |   |     |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Payment performance |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Performing |   | $ | 519,135 |   |   | $ | 1,018,423 |   |   | $ | 878,124 |   |   | $ | 582,761 |   |   | $ | 390,800 |   |   | $ | 268,305 |   |   | $ | 27,871 |   |   | $ | 3,685,419 |   |  
        | Nonperforming |   |   | 1,637 |   |   |   | — |   |   |   | 153 |   |   |   | — |   |   |   | 83 |   |   |   | 919 |   |   |   | — |   |   |   | 2,792 |   |  
        | Total commercial property |   |   | 520,772 |   |   |   | 1,018,423 |   |   |   | 878,277 |   |   |   | 582,761 |   |   |   | 390,883 |   |   |   | 269,224 |   |   |   | 27,871 |   |   |   | 3,688,211 |   |  
        | YTD gross charge-offs |   |   | — |   |   |   | — |   |   |   | — |   |   |   | 411 |   |   |   | — |   |   |   | 216 |   |   |   | — |   |   |   | 627 |   |  
        | YTD net charge-offs |   |   | — |   |   |   | — |   |   |   | — |   |   |   | 407 |   |   |   | — |   |   |   | 46 |   |   |   | — |   |   |   | 453 |   |  
        |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Construction |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Payment performance |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Performing |   |   | 38,129 |   |   |   | — |   |   |   | 46,675 |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | 84,804 |   |  
        | Nonperforming |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |  
        | Total construction |   |   | 38,129 |   |   |   | — |   |   |   | 46,675 |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | 84,804 |   |  
        | YTD gross charge-offs |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |  
        | YTD net charge-offs |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |  
        |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Residential |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Payment performance |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Performing |   |   | 241,830 |   |   |   | 381,167 |   |   |   | 160,856 |   |   |   | 12,791 |   |   |   | 221 |   |   |   | 124,047 |   |   |   | 5,411 |   |   |   | 926,323 |   |  
        | Nonperforming |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | 3 |   |   |   | — |   |   |   | 3 |   |  
        | Total residential |   |   | 241,830 |   |   |   | 381,167 |   |   |   | 160,856 |   |   |   | 12,791 |   |   |   | 221 |   |   |   | 124,050 |   |   |   | 5,411 |   |   |   | 926,326 |   |  
        | YTD gross charge-offs |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |  
        | YTD net charge-offs |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | (6 | ) |   |   | — |   |   |   | (6 | ) |  
        |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Total real estate loans |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Payment performance |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Performing |   |   | 799,094 |   |   |   | 1,399,590 |   |   |   | 1,085,655 |   |   |   | 595,552 |   |   |   | 391,021 |   |   |   | 392,352 |   |   |   | 33,282 |   |   |   | 4,696,546 |   |  
        | Nonperforming |   |   | 1,637 |   |   |   | — |   |   |   | 153 |   |   |   | — |   |   |   | 83 |   |   |   | 922 |   |   |   | — |   |   |   | 2,795 |   |  
        | Total real estate loans |   |   | 800,731 |   |   |   | 1,399,590 |   |   |   | 1,085,808 |   |   |   | 595,552 |   |   |   | 391,104 |   |   |   | 393,274 |   |   |   | 33,282 |   |   |   | 4,699,341 |   |  
        | YTD gross charge-offs |   |   | — |   |   |   | — |   |   |   | — |   |   |   | 411 |   |   |   | — |   |   |   | 216 |   |   |   | — |   |   |   | 627 |   |  
        | YTD net charge-offs |   |   | — |   |   |   | — |   |   |   | — |   |   |   | 407 |   |   |   | — |   |   |   | 40 |   |   |   | — |   |   |   | 447 |   |  
        |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Commercial and industrial loans: |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Payment performance |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Performing |   |   | 142,618 |   |   |   | 192,943 |   |   |   | 88,316 |   |   |   | 33,507 |   |   |   | 11,202 |   |   |   | 13,919 |   |   |   | 241,241 |   |   |   | 723,746 |   |  
        | Nonperforming |   |   | — |   |   |   | — |   |   |   | — |   |   |   | 84 |   |   |   | — |   |   |   | 113 |   |   |   | 4,849 |   |   |   | 5,046 |   |  
        | Total commercial and industrial loans |   |   | 142,618 |   |   |   | 192,943 |   |   |   | 88,316 |   |   |   | 33,591 |   |   |   | 11,202 |   |   |   | 14,032 |   |   |   | 246,090 |   |   |   | 728,792 |   |  
        | YTD gross charge-offs |   |   | — |   |   |   | 17 |   |   |   | — |   |   |   | — |   |   |   | 110 |   |   |   | 388 |   |   |   | 6,120 |   |   |   | 6,635 |   |  
        | YTD net charge-offs |   |   | — |   |   |   | 5 |   |   |   | (5 | ) |   |   | — |   |   |   | 107 |   |   |   | (522 | ) |   |   | 6,119 |   |   |   | 5,704 |   |  
        |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Equipment financing agreements: |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Payment performance |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Performing |   |   | 174,377 |   |   |   | 234,753 |   |   |   | 115,310 |   |   |   | 29,380 |   |   |   | 25,456 |   |   |   | 5,434 |   |   |   | — |   |   |   | 584,710 |   |  
        | Nonperforming |   |   | 329 |   |   |   | 3,630 |   |   |   | 2,719 |   |   |   | 167 |   |   |   | 831 |   |   |   | 266 |   |   |   | — |   |   |   | 7,942 |   |  
        | Total equipment financing agreements |   |   | 174,706 |   |   |   | 238,383 |   |   |   | 118,029 |   |   |   | 29,547 |   |   |   | 26,287 |   |   |   | 5,700 |   |   |   | — |   |   |   | 592,652 |   |  
        | YTD gross charge-offs |   |   | 56 |   |   |   | 3,030 |   |   |   | 2,732 |   |   |   | 294 |   |   |   | 725 |   |   |   | 215 |   |   |   | — |   |   |   | 7,052 |   |  
        | YTD net charge-offs |   |   | 56 |   |   |   | 2,961 |   |   |   | 2,455 |   |   |   | 217 |   |   |   | 335 |   |   |   | (103 | ) |   |   | — |   |   |   | 5,921 |   |  
        |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Total loans receivable: |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Payment performance |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Performing |   |   | 1,116,089 |   |   |   | 1,827,286 |   |   |   | 1,289,281 |   |   |   | 658,439 |   |   |   | 427,679 |   |   |   | 411,705 |   |   |   | 274,523 |   |   |   | 6,005,002 |   |  
        | Nonperforming |   |   | 1,966 |   |   |   | 3,630 |   |   |   | 2,872 |   |   |   | 251 |   |   |   | 914 |   |   |   | 1,301 |   |   |   | 4,849 |   |   |   | 15,783 |   |  
        | Total loans receivable |   | $ | 1,118,055 |   |   | $ | 1,830,916 |   |   | $ | 1,292,153 |   |   | $ | 658,690 |   |   | $ | 428,593 |   |   | $ | 413,006 |   |   | $ | 279,372 |   |   | $ | 6,020,785 |   |  
        | YTD gross charge-offs |   |   | 56 |   |   |   | 3,047 |   |   |   | 2,732 |   |   |   | 705 |   |   |   | 835 |   |   |   | 819 |   |   |   | 6,120 |   |   |   | 14,314 |   |  
        | YTD net charge-offs |   |   | 56 |   |   |   | 2,966 |   |   |   | 2,450 |   |   |   | 624 |   |   |   | 442 |   |   |   | (585 | ) |   |   | 6,119 |   |   |   | 12,072 |   |    
(1)Includes extensions, renewals, or modifications of credit contracts, which consist of a new credit decision.   
       
        |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
        |   |   | Term Loans |   |   |   |   |   |   |   |  
        |   |   | Amortized Cost Basis by Origination Year (1) |   |   |   |   |   |   |   |  
        |   |   | 2022 |   |   | 2021 |   |   | 2020 |   |   | 2019 |   |   | 2018 |   |   | Prior |   |   | RevolvingLoans
 Amortized
 Cost Basis
 |   |   | Total |   |  
        |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | December 31, 2022 |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Real estate loans: |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Commercial property |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Payment performance |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Performing |   | $ | 1,185,208 |   |   | $ | 914,413 |   |   | $ | 606,597 |   |   | $ | 416,213 |   |   | $ | 312,324 |   |   | $ | 233,643 |   |   | $ | 52,578 |   |   | $ | 3,720,976 |   |  
        | Nonperforming |   |   | — |   |   |   | — |   |   |   | 412 |   |   |   | — |   |   |   | 1,930 |   |   |   | 858 |   |   |   | — |   |   |   | 3,200 |   |  
        | Total commercial property |   |   | 1,185,208 |   |   |   | 914,413 |   |   |   | 607,009 |   |   |   | 416,213 |   |   |   | 314,254 |   |   |   | 234,501 |   |   |   | 52,578 |   |   |   | 3,724,176 |   |  
        |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Construction |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Payment performance |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Performing |   |   | 41,662 |   |   |   | 67,543 |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | 109,205 |   |  
        | Nonperforming |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |  
        | Total construction |   |   | 41,662 |   |   |   | 67,543 |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | 109,205 |   |  
        |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Residential |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Payment performance |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Performing |   |   | 405,975 |   |   |   | 173,236 |   |   |   | 13,102 |   |   |   | 232 |   |   |   | 731 |   |   |   | 134,766 |   |   |   | 5,922 |   |   |   | 733,964 |   |  
        | Nonperforming |   |   | 12 |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | — |   |   |   | 496 |   |   |   | — |   |   |   | 508 |   |  
        | Total residential |   |   | 405,987 |   |   |   | 173,236 |   |   |   | 13,102 |   |   |   | 232 |   |   |   | 731 |   |   |   | 135,262 |   |   |   | 5,922 |   |   |   | 734,472 |   |  
        |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Total real estate loans |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Payment performance |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Performing |   |   | 1,632,845 |   |   |   | 1,155,192 |   |   |   | 619,699 |   |   |   | 416,445 |   |   |   | 313,055 |   |   |   | 368,409 |   |   |   | 58,500 |   |   |   | 4,564,145 |   |  
        | Nonperforming |   |   | 12 |   |   |   | — |   |   |   | 412 |   |   |   | — |   |   |   | 1,930 |   |   |   | 1,354 |   |   |   | — |   |   |   | 3,708 |   |  
        | Total real estate loans |   |   | 1,632,857 |   |   |   | 1,155,192 |   |   |   | 620,111 |   |   |   | 416,445 |   |   |   | 314,985 |   |   |   | 369,763 |   |   |   | 58,500 |   |   |   | 4,567,853 |   |  
        |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Commercial and industrial loans: |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Payment performance |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Performing |   |   | 368,778 |   |   |   | 109,822 |   |   |   | 39,577 |   |   |   | 25,199 |   |   |   | 7,452 |   |   |   | 12,539 |   |   |   | 240,703 |   |   |   | 804,070 |   |  
        | Nonperforming |   |   | — |   |   |   | — |   |   |   | 171 |   |   |   | 15 |   |   |   | — |   |   |   | 236 |   |   |   | — |   |   |   | 422 |   |  
        | Total commercial and industrial loans |   |   | 368,778 |   |   |   | 109,822 |   |   |   | 39,748 |   |   |   | 25,214 |   |   |   | 7,452 |   |   |   | 12,775 |   |   |   | 240,703 |   |   |   | 804,492 |   |  
        |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Equipment financing agreements: |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Payment performance |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Performing |   |   | 305,249 |   |   |   | 165,313 |   |   |   | 46,970 |   |   |   | 52,133 |   |   |   | 17,608 |   |   |   | 1,798 |   |   |   | — |   |   |   | 589,071 |   |  
        | Nonperforming |   |   | 630 |   |   |   | 2,542 |   |   |   | 311 |   |   |   | 1,581 |   |   |   | 565 |   |   |   | 88 |   |   |   | — |   |   |   | 5,717 |   |  
        | Total equipment financing agreements |   |   | 305,879 |   |   |   | 167,855 |   |   |   | 47,281 |   |   |   | 53,714 |   |   |   | 18,173 |   |   |   | 1,886 |   |   |   | — |   |   |   | 594,788 |   |  
        |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Total loans receivable: |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Payment performance |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
        | Performing |   |   | 2,306,872 |   |   |   | 1,430,327 |   |   |   | 706,246 |   |   |   | 493,777 |   |   |   | 338,115 |   |   |   | 382,746 |   |   |   | 299,203 |   |   |   | 5,957,286 |   |  
        | Nonperforming |   |   | 642 |   |   |   | 2,542 |   |   |   | 894 |   |   |   | 1,596 |   |   |   | 2,495 |   |   |   | 1,678 |   |   |   | — |   |   |   | 9,847 |   |  
        | Total loans receivable |   | $ | 2,307,514 |   |   | $ | 1,432,869 |   |   | $ | 707,140 |   |   | $ | 495,373 |   |   | $ | 340,610 |   |   | $ | 384,424 |   |   | $ | 299,203 |   |   | $ | 5,967,133 |   |    
(1)Includes extensions, renewals, or modifications of credit contracts, which consist of a new credit decision. |