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Loans and Lease Finance Receivables and Allowance for Credit Losses - Summary of loans by type and origination year, according to our internal risk ratings (Detail) - USD ($) $ in Thousands | Jun. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | $ 1,592,913 |
2019 | 997,198 |
2018 | 923,702 |
2017 | 942,987 |
2016 | 755,336 |
Prior | 2,291,368 |
Revolving loans amortized cost basis | 841,707 |
Revolving loans converted to term loans | 57,323 |
Total | 8,402,534 | $ 7,568,319
Commercial And Industrial [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 62,537 |
2019 | 167,301 |
2018 | 82,214 |
2017 | 70,327 |
2016 | 44,756 |
Prior | 83,714 |
Revolving loans amortized cost basis | 317,927 |
Revolving loans converted to term loans | 11,962 |
Total | 840,738 |
Commercial Trade Financing [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 26,248 |
2019 | 13,448 |
2018 | 48,021 |
2017 | 79,800 |
2016 | 30,213 |
Prior | 102,426 |
Revolving loans amortized cost basis | 0 |
Revolving loans converted to term loans | 0 |
Total | 300,156 |
SBA - Paycheck Protection Program (PPP) [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 1,097,150 |
2019 | 0 |
2018 | 0 |
2017 | 0 |
2016 | 0 |
Prior | 0 |
Revolving loans amortized cost basis | 0 |
Revolving loans converted to term loans | 0 |
Total | 1,097,150 |
Real Estate Loan [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 368,684 |
2019 | 728,087 |
2018 | 733,361 |
2017 | 727,361 |
2016 | 620,130 |
Prior | 1,972,501 |
Revolving loans amortized cost basis | 193,891 |
Revolving loans converted to term loans | 21,105 |
Total | 5,365,120 |
Construction Loans [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 5,259 |
2019 | 16,733 |
2018 | 17,013 |
2017 | 17,780 |
2016 | 10,592 |
Prior | 5 |
Revolving loans amortized cost basis | 52,949 |
Revolving loans converted to term loans | 5,484 |
Total | 125,815 |
Consumer Mortgage [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 30,749 |
2019 | 65,948 |
2018 | 36,731 |
2017 | 27,012 |
2016 | 33,423 |
Prior | 92,217 |
Revolving loans amortized cost basis | 0 |
Revolving loans converted to term loans | 446 |
Total | 286,526 |
Dairy And Livestock And Agribusiness [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 72 |
2019 | 2,763 |
2018 | 2,734 |
2017 | 8,776 |
2016 | 6,430 |
Prior | 9,955 |
Revolving loans amortized cost basis | 205,010 |
Revolving loans converted to term loans | 16,081 |
Total | 251,821 |
Municipal Lease Finance Receivables [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 135 |
2019 | 0 |
2018 | 2,557 |
2017 | 10,766 |
2016 | 7,856 |
Prior | 28,562 |
Revolving loans amortized cost basis | 0 |
Revolving loans converted to term loans | 0 |
Total | 49,876 | 53,146
Consumer Other [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 2,079 |
2019 | 2,918 |
2018 | 1,071 |
2017 | 1,165 |
2016 | 1,936 |
Prior | 1,988 |
Revolving loans amortized cost basis | 71,930 |
Revolving loans converted to term loans | 2,245 |
Total | 85,332 |
Pass [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 1,584,365 |
2019 | 991,454 |
2018 | 900,661 |
2017 | 911,815 |
2016 | 742,482 |
Prior | 2,196,742 |
Revolving loans amortized cost basis | 801,695 |
Revolving loans converted to term loans | 37,456 |
Total | 8,166,670 | 7,321,402
Pass [Member] | Commercial And Industrial [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 58,626 |
2019 | 166,910 |
2018 | 75,223 |
2017 | 67,777 |
2016 | 43,833 |
Prior | 79,031 |
Revolving loans amortized cost basis | 299,536 |
Revolving loans converted to term loans | 9,139 |
Total | 800,075 |
Pass [Member] | Commercial Trade Financing [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 26,248 |
2019 | 13,448 |
2018 | 46,979 |
2017 | 76,029 |
2016 | 27,432 |
Prior | 90,955 |
Revolving loans amortized cost basis | 0 |
Revolving loans converted to term loans | 0 |
Total | 281,091 |
Pass [Member] | SBA - Paycheck Protection Program (PPP) [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 1,097,150 |
2019 | 0 |
2018 | 0 |
2017 | 0 |
2016 | 0 |
Prior | 0 |
Revolving loans amortized cost basis | 0 |
Revolving loans converted to term loans | 0 |
Total | 1,097,150 |
Pass [Member] | Real Estate Loan [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 364,047 |
2019 | 722,734 |
2018 | 719,239 |
2017 | 703,597 |
2016 | 614,850 |
Prior | 1,897,358 |
Revolving loans amortized cost basis | 192,321 |
Revolving loans converted to term loans | 20,802 |
Total | 5,234,948 |
Pass [Member] | Construction Loans [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 5,259 |
2019 | 16,733 |
2018 | 17,013 |
2017 | 17,780 |
2016 | 10,592 |
Prior | 5 |
Revolving loans amortized cost basis | 52,949 |
Revolving loans converted to term loans | 5,484 |
Total | 125,815 |
Pass [Member] | Consumer Mortgage [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 30,749 |
2019 | 65,948 |
2018 | 36,731 |
2017 | 26,637 |
2016 | 33,192 |
Prior | 89,651 |
Revolving loans amortized cost basis | 0 |
Revolving loans converted to term loans | 0 |
Total | 282,908 |
Pass [Member] | Dairy And Livestock And Agribusiness [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 72 |
2019 | 2,763 |
2018 | 1,852 |
2017 | 8,064 |
2016 | 2,795 |
Prior | 9,955 |
Revolving loans amortized cost basis | 185,698 |
Revolving loans converted to term loans | 327 |
Total | 211,526 |
Pass [Member] | Municipal Lease Finance Receivables [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 135 |
2019 | 0 |
2018 | 2,557 |
2017 | 10,766 |
2016 | 7,856 |
Prior | 28,115 |
Revolving loans amortized cost basis | 0 |
Revolving loans converted to term loans | 0 |
Total | 49,429 |
Pass [Member] | Consumer Other [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 2,079 |
2019 | 2,918 |
2018 | 1,067 |
2017 | 1,165 |
2016 | 1,932 |
Prior | 1,672 |
Revolving loans amortized cost basis | 71,191 |
Revolving loans converted to term loans | 1,704 |
Total | 83,728 |
Special Mention [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 6,650 |
2019 | 5,593 |
2018 | 14,759 |
2017 | 18,842 |
2016 | 5,724 |
Prior | 70,767 |
Revolving loans amortized cost basis | 22,353 |
Revolving loans converted to term loans | 4,848 |
Total | 149,536 | 173,486
Special Mention [Member] | Commercial And Industrial [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 2,013 |
2019 | 240 |
2018 | 5,074 |
2017 | 563 |
2016 | 401 |
Prior | 4,647 |
Revolving loans amortized cost basis | 5,531 |
Revolving loans converted to term loans | 1,459 |
Total | 19,928 |
Special Mention [Member] | Commercial Trade Financing [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 0 |
2018 | 0 |
2017 | 1,144 |
2016 | 1,370 |
Prior | 7,099 |
Revolving loans amortized cost basis | 0 |
Revolving loans converted to term loans | 0 |
Total | 9,613 |
Special Mention [Member] | SBA - Paycheck Protection Program (PPP) [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 0 |
2018 | 0 |
2017 | 0 |
2016 | 0 |
Prior | 0 |
Revolving loans amortized cost basis | 0 |
Revolving loans converted to term loans | 0 |
Total | 0 |
Special Mention [Member] | Real Estate Loan [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 4,637 |
2019 | 5,353 |
2018 | 9,685 |
2017 | 16,423 |
2016 | 3,953 |
Prior | 56,510 |
Revolving loans amortized cost basis | 1,339 |
Revolving loans converted to term loans | 0 |
Total | 97,900 |
Special Mention [Member] | Construction Loans [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 0 |
2018 | 0 |
2017 | 0 |
2016 | 0 |
Prior | 0 |
Revolving loans amortized cost basis | 0 |
Revolving loans converted to term loans | 0 |
Total | 0 |
Special Mention [Member] | Consumer Mortgage [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 0 |
2018 | 0 |
2017 | 0 |
2016 | 0 |
Prior | 1,925 |
Revolving loans amortized cost basis | 0 |
Revolving loans converted to term loans | 0 |
Total | 1,925 |
Special Mention [Member] | Dairy And Livestock And Agribusiness [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 0 |
2018 | 0 |
2017 | 712 |
2016 | 0 |
Prior | 0 |
Revolving loans amortized cost basis | 14,750 |
Revolving loans converted to term loans | 3,389 |
Total | 18,851 |
Special Mention [Member] | Municipal Lease Finance Receivables [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 0 |
2018 | 0 |
2017 | 0 |
2016 | 0 |
Prior | 447 |
Revolving loans amortized cost basis | 0 |
Revolving loans converted to term loans | 0 |
Total | 447 |
Special Mention [Member] | Consumer Other [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 0 |
2018 | 0 |
2017 | 0 |
2016 | 0 |
Prior | 139 |
Revolving loans amortized cost basis | 733 |
Revolving loans converted to term loans | 0 |
Total | 872 |
Substandard [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 1,898 |
2019 | 151 |
2018 | 8,282 |
2017 | 12,330 |
2016 | 7,130 |
Prior | 23,859 |
Revolving loans amortized cost basis | 17,659 |
Revolving loans converted to term loans | 15,019 |
Total | 86,328 | 73,431
Substandard [Member] | Commercial And Industrial [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 1,898 |
2019 | 151 |
2018 | 1,917 |
2017 | 1,987 |
2016 | 522 |
Prior | 36 |
Revolving loans amortized cost basis | 12,860 |
Revolving loans converted to term loans | 1,364 |
Total | 20,735 |
Substandard [Member] | Commercial Trade Financing [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 0 |
2018 | 1,042 |
2017 | 2,627 |
2016 | 1,411 |
Prior | 4,372 |
Revolving loans amortized cost basis | 0 |
Revolving loans converted to term loans | 0 |
Total | 9,452 |
Substandard [Member] | SBA - Paycheck Protection Program (PPP) [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 0 |
2018 | 0 |
2017 | 0 |
2016 | 0 |
Prior | 0 |
Revolving loans amortized cost basis | 0 |
Revolving loans converted to term loans | 0 |
Total | 0 |
Substandard [Member] | Real Estate Loan [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 0 |
2018 | 4,437 |
2017 | 7,341 |
2016 | 1,327 |
Prior | 18,633 |
Revolving loans amortized cost basis | 231 |
Revolving loans converted to term loans | 303 |
Total | 32,272 |
Substandard [Member] | Construction Loans [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 0 |
2018 | 0 |
2017 | 0 |
2016 | 0 |
Prior | 0 |
Revolving loans amortized cost basis | 0 |
Revolving loans converted to term loans | 0 |
Total | 0 |
Substandard [Member] | Consumer Mortgage [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 0 |
2018 | 0 |
2017 | 375 |
2016 | 231 |
Prior | 641 |
Revolving loans amortized cost basis | 0 |
Revolving loans converted to term loans | 446 |
Total | 1,693 |
Substandard [Member] | Dairy And Livestock And Agribusiness [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 0 |
2018 | 882 |
2017 | 0 |
2016 | 3,635 |
Prior | 0 |
Revolving loans amortized cost basis | 4,562 |
Revolving loans converted to term loans | 12,365 |
Total | 21,444 |
Substandard [Member] | Municipal Lease Finance Receivables [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 0 |
2018 | 0 |
2017 | 0 |
2016 | 0 |
Prior | 0 |
Revolving loans amortized cost basis | 0 |
Revolving loans converted to term loans | 0 |
Total | 0 |
Substandard [Member] | Consumer Other [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 0 |
2018 | 4 |
2017 | 0 |
2016 | 4 |
Prior | 177 |
Revolving loans amortized cost basis | 6 |
Revolving loans converted to term loans | 541 |
Total | 732 |
Doubtful [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 0 |
2018 | 0 |
2017 | 0 |
2016 | 0 |
Prior | 0 |
Revolving loans amortized cost basis | 0 |
Revolving loans converted to term loans | 0 |
Total | 0 | $ 0
Doubtful [Member] | Commercial And Industrial [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 0 |
2018 | 0 |
2017 | 0 |
2016 | 0 |
Prior | 0 |
Revolving loans amortized cost basis | 0 |
Revolving loans converted to term loans | 0 |
Total | 0 |
Doubtful [Member] | Commercial Trade Financing [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 0 |
2018 | 0 |
2017 | 0 |
2016 | 0 |
Prior | 0 |
Revolving loans amortized cost basis | 0 |
Revolving loans converted to term loans | 0 |
Total | 0 |
Doubtful [Member] | SBA - Paycheck Protection Program (PPP) [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 0 |
2018 | 0 |
2017 | 0 |
2016 | 0 |
Prior | 0 |
Revolving loans amortized cost basis | 0 |
Revolving loans converted to term loans | 0 |
Total | 0 |
Doubtful [Member] | Real Estate Loan [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 0 |
2018 | 0 |
2017 | 0 |
2016 | 0 |
Prior | 0 |
Revolving loans amortized cost basis | 0 |
Revolving loans converted to term loans | 0 |
Total | 0 |
Doubtful [Member] | Construction Loans [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 0 |
2018 | 0 |
2017 | 0 |
2016 | 0 |
Prior | 0 |
Revolving loans amortized cost basis | 0 |
Revolving loans converted to term loans | 0 |
Total | 0 |
Doubtful [Member] | Consumer Mortgage [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 0 |
2018 | 0 |
2017 | 0 |
2016 | 0 |
Prior | 0 |
Revolving loans amortized cost basis | 0 |
Revolving loans converted to term loans | 0 |
Total | 0 |
Doubtful [Member] | Dairy And Livestock And Agribusiness [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 0 |
2018 | 0 |
2017 | 0 |
2016 | 0 |
Prior | 0 |
Revolving loans amortized cost basis | 0 |
Revolving loans converted to term loans | 0 |
Total | 0 |
Doubtful [Member] | Municipal Lease Finance Receivables [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 0 |
2018 | 0 |
2017 | 0 |
2016 | 0 |
Prior | 0 |
Revolving loans amortized cost basis | 0 |
Revolving loans converted to term loans | 0 |
Total | 0 |
Doubtful [Member] | Consumer Other [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 | 0 |
2019 | 0 |
2018 | 0 |
2017 | 0 |
2016 | 0 |
Prior | 0 |
Revolving loans amortized cost basis | 0 |
Revolving loans converted to term loans | 0 |
Total | $ 0 |

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