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Loans and Allowances for Credit Losses, Credit Quality Indicators (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 $ 4,855,463      
Financing Receivable, Originated, 2019 3,161,473      
Financing Receivable, Originated, 2018 2,651,833      
Financing Receivable, Originated, 2017 1,788,880      
Financing Receivable, Originated, 2016 1,356,476      
Financing Receivable, Originated, 2015 or Prior 3,054,469      
Financing Receivable, Revolving 6,108,767      
Financing Receivable, Revolving, Converted to Term Loan 30,159      
Total 23,007,520      
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   $ 19,826,731    
Non-Graded, Recorded Investment   1,924,256    
Total 23,007,520 21,750,987    
Related Allowance [Abstract]        
Internally Risk Graded, Related Allowance   179,129    
Non-Graded, Related Allowance   14,435    
Total, Related Allowance 388,640 210,759 $ 207,457 $ 230,682
Commercial [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 1,657,760      
Financing Receivable, Originated, 2019 1,557,142      
Financing Receivable, Originated, 2018 1,461,282      
Financing Receivable, Originated, 2017 1,013,619      
Financing Receivable, Originated, 2016 747,318      
Financing Receivable, Originated, 2015 or Prior 1,603,533      
Financing Receivable, Revolving 5,033,683      
Financing Receivable, Revolving, Converted to Term Loan 3,198      
Total 13,077,535      
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   13,997,538    
Non-Graded, Recorded Investment   34,112    
Total 13,077,535 14,031,650    
Related Allowance [Abstract]        
Internally Risk Graded, Related Allowance   117,236    
Non-Graded, Related Allowance   951    
Total, Related Allowance 254,934 118,187 102,226 124,269
Commercial [Member] | Energy [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 157,690      
Financing Receivable, Originated, 2019 55,833      
Financing Receivable, Originated, 2018 90,799      
Financing Receivable, Originated, 2017 7,178      
Financing Receivable, Originated, 2016 13,815      
Financing Receivable, Originated, 2015 or Prior 29,020      
Financing Receivable, Revolving 3,114,859      
Financing Receivable, Revolving, Converted to Term Loan 0      
Total 3,469,194      
Recorded Investment [Abstract]        
Total 3,469,194 3,973,377    
Commercial [Member] | Healthcare [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 536,745      
Financing Receivable, Originated, 2019 642,739      
Financing Receivable, Originated, 2018 639,676      
Financing Receivable, Originated, 2017 423,763      
Financing Receivable, Originated, 2016 234,531      
Financing Receivable, Originated, 2015 or Prior 680,890      
Financing Receivable, Revolving 147,646      
Financing Receivable, Revolving, Converted to Term Loan 0      
Total 3,305,990      
Recorded Investment [Abstract]        
Total 3,305,990 3,033,916    
Commercial [Member] | Services [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 540,265      
Financing Receivable, Originated, 2019 452,269      
Financing Receivable, Originated, 2018 399,264      
Financing Receivable, Originated, 2017 326,282      
Financing Receivable, Originated, 2016 381,902      
Financing Receivable, Originated, 2015 or Prior 700,028      
Financing Receivable, Revolving 707,891      
Financing Receivable, Revolving, Converted to Term Loan 682      
Total 3,508,583      
Recorded Investment [Abstract]        
Total 3,508,583 3,122,163    
Commercial [Member] | General business [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 423,060      
Financing Receivable, Originated, 2019 406,301      
Financing Receivable, Originated, 2018 331,543      
Financing Receivable, Originated, 2017 256,396      
Financing Receivable, Originated, 2016 117,070      
Financing Receivable, Originated, 2015 or Prior 193,595      
Financing Receivable, Revolving 1,063,287      
Financing Receivable, Revolving, Converted to Term Loan 2,516      
Total 2,793,768      
Recorded Investment [Abstract]        
Total 2,793,768      
Commercial [Member] | Wholesale/retail [Member]        
Recorded Investment [Abstract]        
Total   1,760,866    
Commercial [Member] | Manufacturing [Member]        
Recorded Investment [Abstract]        
Total   665,449    
Commercial [Member] | Public finance [Member]        
Recorded Investment [Abstract]        
Total   709,868    
Commercial [Member] | Other commercial and industrial [Member]        
Recorded Investment [Abstract]        
Total   766,011    
Commercial real estate [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 725,577      
Financing Receivable, Originated, 2019 1,219,638      
Financing Receivable, Originated, 2018 954,485      
Financing Receivable, Originated, 2017 506,146      
Financing Receivable, Originated, 2016 325,092      
Financing Receivable, Originated, 2015 or Prior 744,404      
Financing Receivable, Revolving 223,158      
Financing Receivable, Revolving, Converted to Term Loan 38      
Total 4,698,538      
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   4,433,783    
Non-Graded, Recorded Investment   0    
Total 4,698,538 4,433,783    
Related Allowance [Abstract]        
Internally Risk Graded, Related Allowance   51,805    
Non-Graded, Related Allowance   0    
Total, Related Allowance 86,558 51,805 60,026 56,621
Commercial real estate [Member] | Residential construction and land development [Member]        
Recorded Investment [Abstract]        
Total   150,879    
Commercial real estate [Member] | Retail [Member]        
Recorded Investment [Abstract]        
Total   775,521    
Commercial real estate [Member] | Office [Member]        
Recorded Investment [Abstract]        
Total   928,379    
Commercial real estate [Member] | Multifamily [Member]        
Recorded Investment [Abstract]        
Total   1,265,562    
Commercial real estate [Member] | Industrial [Member]        
Recorded Investment [Abstract]        
Total   856,117    
Commercial real estate [Member] | Other commercial real estate [Member]        
Recorded Investment [Abstract]        
Total   457,325    
Paycheck Protection Program        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 1,682,310      
Financing Receivable, Originated, 2019 0      
Financing Receivable, Originated, 2018 0      
Financing Receivable, Originated, 2017 0      
Financing Receivable, Originated, 2016 0      
Financing Receivable, Originated, 2015 or Prior 0      
Financing Receivable, Revolving 0      
Financing Receivable, Revolving, Converted to Term Loan 0      
Total 1,682,310      
Recorded Investment [Abstract]        
Total 1,682,310      
Related Allowance [Abstract]        
Total, Related Allowance 0      
Loans to individuals [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 789,816      
Financing Receivable, Originated, 2019 384,693      
Financing Receivable, Originated, 2018 236,066      
Financing Receivable, Originated, 2017 269,115      
Financing Receivable, Originated, 2016 284,066      
Financing Receivable, Originated, 2015 or Prior 706,532      
Financing Receivable, Revolving 851,926      
Financing Receivable, Revolving, Converted to Term Loan 26,923      
Total 3,549,137      
Recorded Investment [Abstract]        
Total 3,549,137      
Related Allowance [Abstract]        
Total, Related Allowance 47,148      
Loans to individuals [Member] | Permanent residential mortgage [Member]        
Recorded Investment [Abstract]        
Total   1,057,321    
Loans to individuals [Member] | Permanent residential mortgage [Member] | Loans Insured or Guaranteed by US Government Authorities        
Recorded Investment [Abstract]        
Total   197,794    
Loans to individuals [Member] | Home equity [Member]        
Recorded Investment [Abstract]        
Total   829,057    
Loans to individuals [Member] | Residential Mortgage [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 565,006      
Financing Receivable, Originated, 2019 149,947      
Financing Receivable, Originated, 2018 124,678      
Financing Receivable, Originated, 2017 125,714      
Financing Receivable, Originated, 2016 160,870      
Financing Receivable, Originated, 2015 or Prior 371,059      
Financing Receivable, Revolving 340,316      
Financing Receivable, Revolving, Converted to Term Loan 25,413      
Total 1,863,003      
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   279,113    
Non-Graded, Recorded Investment   1,805,059    
Total   2,084,172    
Related Allowance [Abstract]        
Internally Risk Graded, Related Allowance   3,085    
Non-Graded, Related Allowance   11,315    
Total, Related Allowance   14,400 17,964 18,451
Loans to individuals [Member] | Residential Mortgage [Member] | US Government Agency Insured Loans        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 4,859      
Financing Receivable, Originated, 2019 33,880      
Financing Receivable, Originated, 2018 35,009      
Financing Receivable, Originated, 2017 43,099      
Financing Receivable, Originated, 2016 58,573      
Financing Receivable, Originated, 2015 or Prior 233,267      
Financing Receivable, Revolving 0      
Financing Receivable, Revolving, Converted to Term Loan 0      
Total 408,687      
Loans to individuals [Member] | Personal [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 219,951      
Financing Receivable, Originated, 2019 200,866      
Financing Receivable, Originated, 2018 76,379      
Financing Receivable, Originated, 2017 100,302      
Financing Receivable, Originated, 2016 64,623      
Financing Receivable, Originated, 2015 or Prior 102,206      
Financing Receivable, Revolving 511,610      
Financing Receivable, Revolving, Converted to Term Loan 1,510      
Total 1,277,447      
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   1,116,297    
Non-Graded, Recorded Investment   85,085    
Total 1,277,447 1,201,382    
Related Allowance [Abstract]        
Internally Risk Graded, Related Allowance   7,003    
Non-Graded, Related Allowance   2,169    
Total, Related Allowance   9,172 9,473 9,124
Loans to individuals [Member] | Home Equity Loan        
Recorded Investment [Abstract]        
Total   829,057    
Specific Allowance [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   19,826,731    
Non-Graded, Recorded Investment   1,924,256    
Total   21,750,987    
Related Allowance [Abstract]        
Internally Risk Graded, Related Allowance   179,129    
Non-Graded, Related Allowance   14,435    
Total, Related Allowance   193,564    
Nonspecific Allowance [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   0    
Non-Graded, Recorded Investment   0    
Total   0    
Related Allowance [Abstract]        
Internally Risk Graded, Related Allowance   0    
Non-Graded, Related Allowance   0    
Total, Related Allowance   17,195 $ 17,768 $ 22,217
Performing [Member]        
Recorded Investment [Abstract]        
Non-Graded, Recorded Investment   1,886,858    
Performing [Member] | Pass [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   19,312,702    
Performing [Member] | Special Mention [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   210,149    
Performing [Member] | Accruing Substandard [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   160,326    
Performing [Member] | Commercial [Member]        
Recorded Investment [Abstract]        
Non-Graded, Recorded Investment   34,075    
Performing [Member] | Commercial [Member] | Pass [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   13,538,705    
Performing [Member] | Commercial [Member] | Special Mention [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   187,881    
Performing [Member] | Commercial [Member] | Accruing Substandard [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   155,573    
Performing [Member] | Commercial [Member] | Energy [Member]        
Recorded Investment [Abstract]        
Non-Graded, Recorded Investment   0    
Performing [Member] | Commercial [Member] | Energy [Member] | Pass [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 112,614      
Financing Receivable, Originated, 2019 51,863      
Financing Receivable, Originated, 2018 89,346      
Financing Receivable, Originated, 2017 7,178      
Financing Receivable, Originated, 2016 1,148      
Financing Receivable, Originated, 2015 or Prior 7,956      
Financing Receivable, Revolving 2,548,663      
Financing Receivable, Revolving, Converted to Term Loan 0      
Total 2,818,768      
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   3,700,406    
Performing [Member] | Commercial [Member] | Energy [Member] | Special Mention [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 0      
Financing Receivable, Originated, 2019 0      
Financing Receivable, Originated, 2018 0      
Financing Receivable, Originated, 2017 0      
Financing Receivable, Originated, 2016 0      
Financing Receivable, Originated, 2015 or Prior 0      
Financing Receivable, Revolving 202,590      
Financing Receivable, Revolving, Converted to Term Loan 0      
Total 202,590      
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   117,298    
Performing [Member] | Commercial [Member] | Energy [Member] | Accruing Substandard [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 24,000      
Financing Receivable, Originated, 2019 1,363      
Financing Receivable, Originated, 2018 1,453      
Financing Receivable, Originated, 2017 0      
Financing Receivable, Originated, 2016 12,667      
Financing Receivable, Originated, 2015 or Prior 0      
Financing Receivable, Revolving 283,294      
Financing Receivable, Revolving, Converted to Term Loan 0      
Total 322,777      
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   63,951    
Performing [Member] | Commercial [Member] | Healthcare [Member]        
Recorded Investment [Abstract]        
Non-Graded, Recorded Investment   0    
Performing [Member] | Commercial [Member] | Healthcare [Member] | Pass [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 536,745      
Financing Receivable, Originated, 2019 615,221      
Financing Receivable, Originated, 2018 638,302      
Financing Receivable, Originated, 2017 422,834      
Financing Receivable, Originated, 2016 234,399      
Financing Receivable, Originated, 2015 or Prior 658,286      
Financing Receivable, Revolving 147,132      
Financing Receivable, Revolving, Converted to Term Loan 0      
Total 3,252,919      
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   2,995,514    
Performing [Member] | Commercial [Member] | Healthcare [Member] | Special Mention [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 0      
Financing Receivable, Originated, 2019 27,500      
Financing Receivable, Originated, 2018 0      
Financing Receivable, Originated, 2017 0      
Financing Receivable, Originated, 2016 0      
Financing Receivable, Originated, 2015 or Prior 8,282      
Financing Receivable, Revolving 5      
Financing Receivable, Revolving, Converted to Term Loan 0      
Total 35,787      
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   13,117    
Performing [Member] | Commercial [Member] | Healthcare [Member] | Accruing Substandard [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 0      
Financing Receivable, Originated, 2019 0      
Financing Receivable, Originated, 2018 1,191      
Financing Receivable, Originated, 2017 929      
Financing Receivable, Originated, 2016 132      
Financing Receivable, Originated, 2015 or Prior 11,387      
Financing Receivable, Revolving 0      
Financing Receivable, Revolving, Converted to Term Loan 0      
Total 13,639      
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   20,805    
Performing [Member] | Commercial [Member] | Services [Member]        
Recorded Investment [Abstract]        
Non-Graded, Recorded Investment   0    
Performing [Member] | Commercial [Member] | Services [Member] | Pass [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 534,853      
Financing Receivable, Originated, 2019 436,384      
Financing Receivable, Originated, 2018 372,867      
Financing Receivable, Originated, 2017 307,374      
Financing Receivable, Originated, 2016 373,785      
Financing Receivable, Originated, 2015 or Prior 683,936      
Financing Receivable, Revolving 665,491      
Financing Receivable, Revolving, Converted to Term Loan 682      
Total 3,375,372      
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   3,050,946    
Performing [Member] | Commercial [Member] | Services [Member] | Special Mention [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 150      
Financing Receivable, Originated, 2019 9,057      
Financing Receivable, Originated, 2018 389      
Financing Receivable, Originated, 2017 291      
Financing Receivable, Originated, 2016 2,038      
Financing Receivable, Originated, 2015 or Prior 2,000      
Financing Receivable, Revolving 3,063      
Financing Receivable, Revolving, Converted to Term Loan 0      
Total 16,988      
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   29,943    
Performing [Member] | Commercial [Member] | Services [Member] | Accruing Substandard [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 429      
Financing Receivable, Originated, 2019 6,380      
Financing Receivable, Originated, 2018 26,008      
Financing Receivable, Originated, 2017 6,027      
Financing Receivable, Originated, 2016 5,030      
Financing Receivable, Originated, 2015 or Prior 7,954      
Financing Receivable, Revolving 38,797      
Financing Receivable, Revolving, Converted to Term Loan 0      
Total 90,625      
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   33,791    
Performing [Member] | Commercial [Member] | General business [Member] | Pass [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 419,756      
Financing Receivable, Originated, 2019 394,985      
Financing Receivable, Originated, 2018 310,273      
Financing Receivable, Originated, 2017 236,222      
Financing Receivable, Originated, 2016 103,987      
Financing Receivable, Originated, 2015 or Prior 186,600      
Financing Receivable, Revolving 1,055,878      
Financing Receivable, Revolving, Converted to Term Loan 2,316      
Total 2,710,017      
Performing [Member] | Commercial [Member] | General business [Member] | Special Mention [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 197      
Financing Receivable, Originated, 2019 4,519      
Financing Receivable, Originated, 2018 9,713      
Financing Receivable, Originated, 2017 7,803      
Financing Receivable, Originated, 2016 2,511      
Financing Receivable, Originated, 2015 or Prior 3,159      
Financing Receivable, Revolving 2,483      
Financing Receivable, Revolving, Converted to Term Loan 19      
Total 30,404      
Performing [Member] | Commercial [Member] | General business [Member] | Accruing Substandard [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 1,432      
Financing Receivable, Originated, 2019 3,069      
Financing Receivable, Originated, 2018 6,694      
Financing Receivable, Originated, 2017 10,935      
Financing Receivable, Originated, 2016 10,042      
Financing Receivable, Originated, 2015 or Prior 3,729      
Financing Receivable, Revolving 4,449      
Financing Receivable, Revolving, Converted to Term Loan 140      
Total 40,490      
Performing [Member] | Commercial [Member] | Wholesale/retail [Member]        
Recorded Investment [Abstract]        
Non-Graded, Recorded Investment   0    
Performing [Member] | Commercial [Member] | Wholesale/retail [Member] | Pass [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   1,749,023    
Performing [Member] | Commercial [Member] | Wholesale/retail [Member] | Special Mention [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   5,281    
Performing [Member] | Commercial [Member] | Wholesale/retail [Member] | Accruing Substandard [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   5,399    
Performing [Member] | Commercial [Member] | Manufacturing [Member]        
Recorded Investment [Abstract]        
Non-Graded, Recorded Investment   0    
Performing [Member] | Commercial [Member] | Manufacturing [Member] | Pass [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   623,219    
Performing [Member] | Commercial [Member] | Manufacturing [Member] | Special Mention [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   18,214    
Performing [Member] | Commercial [Member] | Manufacturing [Member] | Accruing Substandard [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   13,883    
Performing [Member] | Commercial [Member] | Public finance [Member]        
Recorded Investment [Abstract]        
Non-Graded, Recorded Investment   0    
Performing [Member] | Commercial [Member] | Public finance [Member] | Pass [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   709,868    
Performing [Member] | Commercial [Member] | Public finance [Member] | Special Mention [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   0    
Performing [Member] | Commercial [Member] | Public finance [Member] | Accruing Substandard [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   0    
Performing [Member] | Commercial [Member] | Other commercial and industrial [Member]        
Recorded Investment [Abstract]        
Non-Graded, Recorded Investment   34,075    
Performing [Member] | Commercial [Member] | Other commercial and industrial [Member] | Pass [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   709,729    
Performing [Member] | Commercial [Member] | Other commercial and industrial [Member] | Special Mention [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   4,028    
Performing [Member] | Commercial [Member] | Other commercial and industrial [Member] | Accruing Substandard [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   17,744    
Performing [Member] | Commercial real estate [Member]        
Recorded Investment [Abstract]        
Non-Graded, Recorded Investment   0    
Performing [Member] | Commercial real estate [Member] | Pass [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 725,577      
Financing Receivable, Originated, 2019 1,211,338      
Financing Receivable, Originated, 2018 954,226      
Financing Receivable, Originated, 2017 489,193      
Financing Receivable, Originated, 2016 314,899      
Financing Receivable, Originated, 2015 or Prior 722,475      
Financing Receivable, Revolving 223,131      
Financing Receivable, Revolving, Converted to Term Loan 38      
Total 4,640,877      
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   4,381,663    
Performing [Member] | Commercial real estate [Member] | Special Mention [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 0      
Financing Receivable, Originated, 2019 0      
Financing Receivable, Originated, 2018 259      
Financing Receivable, Originated, 2017 12,311      
Financing Receivable, Originated, 2016 2,725      
Financing Receivable, Originated, 2015 or Prior 5,831      
Financing Receivable, Revolving 0      
Financing Receivable, Revolving, Converted to Term Loan 0      
Total 21,126      
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   22,145    
Performing [Member] | Commercial real estate [Member] | Accruing Substandard [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 0      
Financing Receivable, Originated, 2019 0      
Financing Receivable, Originated, 2018 0      
Financing Receivable, Originated, 2017 4,410      
Financing Receivable, Originated, 2016 0      
Financing Receivable, Originated, 2015 or Prior 4,852      
Financing Receivable, Revolving 27      
Financing Receivable, Revolving, Converted to Term Loan 0      
Total 9,289      
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   2,349    
Performing [Member] | Commercial real estate [Member] | Residential construction and land development [Member]        
Recorded Investment [Abstract]        
Non-Graded, Recorded Investment   0    
Performing [Member] | Commercial real estate [Member] | Residential construction and land development [Member] | Pass [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   150,529    
Performing [Member] | Commercial real estate [Member] | Residential construction and land development [Member] | Special Mention [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   0    
Performing [Member] | Commercial real estate [Member] | Residential construction and land development [Member] | Accruing Substandard [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   0    
Performing [Member] | Commercial real estate [Member] | Retail [Member]        
Recorded Investment [Abstract]        
Non-Graded, Recorded Investment   0    
Performing [Member] | Commercial real estate [Member] | Retail [Member] | Pass [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   743,343    
Performing [Member] | Commercial real estate [Member] | Retail [Member] | Special Mention [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   12,067    
Performing [Member] | Commercial real estate [Member] | Retail [Member] | Accruing Substandard [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   1,243    
Performing [Member] | Commercial real estate [Member] | Office [Member]        
Recorded Investment [Abstract]        
Non-Graded, Recorded Investment   0    
Performing [Member] | Commercial real estate [Member] | Office [Member] | Pass [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   923,202    
Performing [Member] | Commercial real estate [Member] | Office [Member] | Special Mention [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   5,177    
Performing [Member] | Commercial real estate [Member] | Office [Member] | Accruing Substandard [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   0    
Performing [Member] | Commercial real estate [Member] | Multifamily [Member]        
Recorded Investment [Abstract]        
Non-Graded, Recorded Investment   0    
Performing [Member] | Commercial real estate [Member] | Multifamily [Member] | Pass [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   1,257,005    
Performing [Member] | Commercial real estate [Member] | Multifamily [Member] | Special Mention [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   1,604    
Performing [Member] | Commercial real estate [Member] | Multifamily [Member] | Accruing Substandard [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   95    
Performing [Member] | Commercial real estate [Member] | Industrial [Member]        
Recorded Investment [Abstract]        
Non-Graded, Recorded Investment   0    
Performing [Member] | Commercial real estate [Member] | Industrial [Member] | Pass [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   852,539    
Performing [Member] | Commercial real estate [Member] | Industrial [Member] | Special Mention [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   1,658    
Performing [Member] | Commercial real estate [Member] | Industrial [Member] | Accruing Substandard [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   1,011    
Performing [Member] | Commercial real estate [Member] | Other commercial real estate [Member]        
Recorded Investment [Abstract]        
Non-Graded, Recorded Investment   0    
Performing [Member] | Commercial real estate [Member] | Other commercial real estate [Member] | Pass [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   455,045    
Performing [Member] | Commercial real estate [Member] | Other commercial real estate [Member] | Special Mention [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   1,639    
Performing [Member] | Commercial real estate [Member] | Other commercial real estate [Member] | Accruing Substandard [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   0    
Performing [Member] | Paycheck Protection Program | Pass [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 1,682,310      
Financing Receivable, Originated, 2019 0      
Financing Receivable, Originated, 2018 0      
Financing Receivable, Originated, 2017 0      
Financing Receivable, Originated, 2016 0      
Financing Receivable, Originated, 2015 or Prior 0      
Financing Receivable, Revolving 0      
Financing Receivable, Revolving, Converted to Term Loan 0      
Total 1,682,310      
Performing [Member] | Loans to individuals [Member] | Permanent residential mortgage [Member]        
Recorded Investment [Abstract]        
Non-Graded, Recorded Investment   758,260    
Performing [Member] | Loans to individuals [Member] | Permanent residential mortgage [Member] | Pass [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   276,138    
Performing [Member] | Loans to individuals [Member] | Permanent residential mortgage [Member] | Special Mention [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   78    
Performing [Member] | Loans to individuals [Member] | Permanent residential mortgage [Member] | Accruing Substandard [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   2,404    
Performing [Member] | Loans to individuals [Member] | Permanent residential mortgage [Member] | Loans Insured or Guaranteed by US Government Authorities        
Recorded Investment [Abstract]        
Non-Graded, Recorded Investment   191,694    
Performing [Member] | Loans to individuals [Member] | Permanent residential mortgage [Member] | Loans Insured or Guaranteed by US Government Authorities | Pass [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   0    
Performing [Member] | Loans to individuals [Member] | Permanent residential mortgage [Member] | Loans Insured or Guaranteed by US Government Authorities | Special Mention [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   0    
Performing [Member] | Loans to individuals [Member] | Permanent residential mortgage [Member] | Loans Insured or Guaranteed by US Government Authorities | Accruing Substandard [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   0    
Performing [Member] | Loans to individuals [Member] | Residential Mortgage [Member]        
Recorded Investment [Abstract]        
Non-Graded, Recorded Investment   1,767,930    
Performing [Member] | Loans to individuals [Member] | Residential Mortgage [Member] | Pass [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 564,325      
Financing Receivable, Originated, 2019 149,832      
Financing Receivable, Originated, 2018 120,875      
Financing Receivable, Originated, 2017 124,930      
Financing Receivable, Originated, 2016 158,801      
Financing Receivable, Originated, 2015 or Prior 348,292      
Financing Receivable, Revolving 335,259      
Financing Receivable, Revolving, Converted to Term Loan 24,553      
Total 1,826,867      
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   276,138    
Performing [Member] | Loans to individuals [Member] | Residential Mortgage [Member] | Special Mention [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 33      
Financing Receivable, Originated, 2019 11      
Financing Receivable, Originated, 2018 2,094      
Financing Receivable, Originated, 2017 0      
Financing Receivable, Originated, 2016 59      
Financing Receivable, Originated, 2015 or Prior 318      
Financing Receivable, Revolving 950      
Financing Receivable, Revolving, Converted to Term Loan 10      
Total 3,475      
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   78    
Performing [Member] | Loans to individuals [Member] | Residential Mortgage [Member] | Accruing Substandard [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 0      
Financing Receivable, Originated, 2019 0      
Financing Receivable, Originated, 2018 51      
Financing Receivable, Originated, 2017 0      
Financing Receivable, Originated, 2016 0      
Financing Receivable, Originated, 2015 or Prior 34      
Financing Receivable, Revolving 272      
Financing Receivable, Revolving, Converted to Term Loan 76      
Total 433      
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   2,404    
Performing [Member] | Loans to individuals [Member] | Residential Mortgage [Member] | US Government Agency Insured Loans | Pass [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 4,859      
Financing Receivable, Originated, 2019 33,880      
Financing Receivable, Originated, 2018 34,464      
Financing Receivable, Originated, 2017 43,099      
Financing Receivable, Originated, 2016 58,264      
Financing Receivable, Originated, 2015 or Prior 226,380      
Financing Receivable, Revolving 0      
Financing Receivable, Revolving, Converted to Term Loan 0      
Total 400,946      
Performing [Member] | Loans to individuals [Member] | Residential Mortgage [Member] | US Government Agency Insured Loans | Special Mention [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 0      
Financing Receivable, Originated, 2019 0      
Financing Receivable, Originated, 2018 0      
Financing Receivable, Originated, 2017 0      
Financing Receivable, Originated, 2016 0      
Financing Receivable, Originated, 2015 or Prior 0      
Financing Receivable, Revolving 0      
Financing Receivable, Revolving, Converted to Term Loan 0      
Total 0      
Performing [Member] | Loans to individuals [Member] | Residential Mortgage [Member] | US Government Agency Insured Loans | Accruing Substandard [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 0      
Financing Receivable, Originated, 2019 0      
Financing Receivable, Originated, 2018 0      
Financing Receivable, Originated, 2017 0      
Financing Receivable, Originated, 2016 0      
Financing Receivable, Originated, 2015 or Prior 0      
Financing Receivable, Revolving 0      
Financing Receivable, Revolving, Converted to Term Loan 0      
Total 0      
Performing [Member] | Loans to individuals [Member] | Personal [Member]        
Recorded Investment [Abstract]        
Non-Graded, Recorded Investment   84,853    
Performing [Member] | Loans to individuals [Member] | Personal [Member] | Pass [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 219,873      
Financing Receivable, Originated, 2019 200,580      
Financing Receivable, Originated, 2018 76,246      
Financing Receivable, Originated, 2017 100,229      
Financing Receivable, Originated, 2016 64,104      
Financing Receivable, Originated, 2015 or Prior 102,126      
Financing Receivable, Revolving 510,571      
Financing Receivable, Revolving, Converted to Term Loan 1,510      
Total 1,275,239      
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   1,116,196    
Performing [Member] | Loans to individuals [Member] | Personal [Member] | Special Mention [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 39      
Financing Receivable, Originated, 2019 55      
Financing Receivable, Originated, 2018 66      
Financing Receivable, Originated, 2017 0      
Financing Receivable, Originated, 2016 469      
Financing Receivable, Originated, 2015 or Prior 31      
Financing Receivable, Revolving 965      
Financing Receivable, Revolving, Converted to Term Loan 0      
Total 1,625      
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   45    
Performing [Member] | Loans to individuals [Member] | Personal [Member] | Accruing Substandard [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 11      
Financing Receivable, Originated, 2019 214      
Financing Receivable, Originated, 2018 10      
Financing Receivable, Originated, 2017 0      
Financing Receivable, Originated, 2016 0      
Financing Receivable, Originated, 2015 or Prior 0      
Financing Receivable, Revolving 29      
Financing Receivable, Revolving, Converted to Term Loan 0      
Total 264      
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   0    
Performing [Member] | Loans to individuals [Member] | Home Equity Loan        
Recorded Investment [Abstract]        
Non-Graded, Recorded Investment   817,976    
Performing [Member] | Loans to individuals [Member] | Home Equity Loan | Pass [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   0    
Performing [Member] | Loans to individuals [Member] | Home Equity Loan | Special Mention [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   0    
Performing [Member] | Loans to individuals [Member] | Home Equity Loan | Accruing Substandard [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   0    
Nonaccrual [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   143,554    
Non-Graded, Recorded Investment   37,398    
Nonaccrual [Member] | Commercial [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   115,379    
Non-Graded, Recorded Investment   37    
Nonaccrual [Member] | Commercial [Member] | Energy [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   91,722    
Non-Graded, Recorded Investment   0    
Nonaccrual [Member] | Commercial [Member] | Energy [Member] | Nonaccruing substandard and doubtful        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 21,076      
Financing Receivable, Originated, 2019 2,607      
Financing Receivable, Originated, 2018 0      
Financing Receivable, Originated, 2017 0      
Financing Receivable, Originated, 2016 0      
Financing Receivable, Originated, 2015 or Prior 21,064      
Financing Receivable, Revolving 80,312      
Financing Receivable, Revolving, Converted to Term Loan 0      
Total 125,059      
Nonaccrual [Member] | Commercial [Member] | Healthcare [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   4,480    
Non-Graded, Recorded Investment   0    
Nonaccrual [Member] | Commercial [Member] | Healthcare [Member] | Nonaccruing substandard and doubtful        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 0      
Financing Receivable, Originated, 2019 18      
Financing Receivable, Originated, 2018 183      
Financing Receivable, Originated, 2017 0      
Financing Receivable, Originated, 2016 0      
Financing Receivable, Originated, 2015 or Prior 2,935      
Financing Receivable, Revolving 509      
Financing Receivable, Revolving, Converted to Term Loan 0      
Total 3,645      
Nonaccrual [Member] | Commercial [Member] | Services [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   7,483    
Non-Graded, Recorded Investment   0    
Nonaccrual [Member] | Commercial [Member] | Services [Member] | Nonaccruing substandard and doubtful        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 4,833      
Financing Receivable, Originated, 2019 448      
Financing Receivable, Originated, 2018 0      
Financing Receivable, Originated, 2017 12,590      
Financing Receivable, Originated, 2016 1,049      
Financing Receivable, Originated, 2015 or Prior 6,138      
Financing Receivable, Revolving 540      
Financing Receivable, Revolving, Converted to Term Loan 0      
Total 25,598      
Nonaccrual [Member] | Commercial [Member] | General business [Member]        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 1,675      
Financing Receivable, Originated, 2019 3,728      
Financing Receivable, Originated, 2018 4,863      
Financing Receivable, Originated, 2017 1,436      
Financing Receivable, Originated, 2016 530      
Financing Receivable, Originated, 2015 or Prior 107      
Financing Receivable, Revolving 477      
Financing Receivable, Revolving, Converted to Term Loan 41      
Total 12,857      
Nonaccrual [Member] | Commercial [Member] | Wholesale/retail [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   1,163    
Non-Graded, Recorded Investment   0    
Nonaccrual [Member] | Commercial [Member] | Manufacturing [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   10,133    
Non-Graded, Recorded Investment   0    
Nonaccrual [Member] | Commercial [Member] | Public finance [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   0    
Non-Graded, Recorded Investment   0    
Nonaccrual [Member] | Commercial [Member] | Other commercial and industrial [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   398    
Non-Graded, Recorded Investment   37    
Nonaccrual [Member] | Commercial real estate [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   27,626    
Non-Graded, Recorded Investment   0    
Nonaccrual [Member] | Commercial real estate [Member] | Nonaccruing substandard and doubtful        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 0      
Financing Receivable, Originated, 2019 8,300      
Financing Receivable, Originated, 2018 0      
Financing Receivable, Originated, 2017 232      
Financing Receivable, Originated, 2016 7,468      
Financing Receivable, Originated, 2015 or Prior 11,246      
Financing Receivable, Revolving 0      
Financing Receivable, Revolving, Converted to Term Loan 0      
Total 27,246      
Nonaccrual [Member] | Commercial real estate [Member] | Residential construction and land development [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   350    
Non-Graded, Recorded Investment   0    
Nonaccrual [Member] | Commercial real estate [Member] | Retail [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   18,868    
Non-Graded, Recorded Investment   0    
Nonaccrual [Member] | Commercial real estate [Member] | Office [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   0    
Non-Graded, Recorded Investment   0    
Nonaccrual [Member] | Commercial real estate [Member] | Multifamily [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   6,858    
Non-Graded, Recorded Investment   0    
Nonaccrual [Member] | Commercial real estate [Member] | Industrial [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   909    
Non-Graded, Recorded Investment   0    
Nonaccrual [Member] | Commercial real estate [Member] | Other commercial real estate [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   641    
Non-Graded, Recorded Investment   0    
Nonaccrual [Member] | Loans to individuals [Member] | Permanent residential mortgage [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   493    
Non-Graded, Recorded Investment   19,948    
Nonaccrual [Member] | Loans to individuals [Member] | Permanent residential mortgage [Member] | Loans Insured or Guaranteed by US Government Authorities        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   0    
Non-Graded, Recorded Investment   6,100    
Nonaccrual [Member] | Loans to individuals [Member] | Residential Mortgage [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   493    
Non-Graded, Recorded Investment   37,129    
Nonaccrual [Member] | Loans to individuals [Member] | Residential Mortgage [Member] | Nonaccruing substandard and doubtful        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 648      
Financing Receivable, Originated, 2019 104      
Financing Receivable, Originated, 2018 1,658      
Financing Receivable, Originated, 2017 784      
Financing Receivable, Originated, 2016 2,010      
Financing Receivable, Originated, 2015 or Prior 22,415      
Financing Receivable, Revolving 3,835      
Financing Receivable, Revolving, Converted to Term Loan 774      
Total 32,228      
Nonaccrual [Member] | Loans to individuals [Member] | Residential Mortgage [Member] | US Government Agency Insured Loans | Nonaccruing substandard and doubtful        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 0      
Financing Receivable, Originated, 2019 0      
Financing Receivable, Originated, 2018 545      
Financing Receivable, Originated, 2017 0      
Financing Receivable, Originated, 2016 309      
Financing Receivable, Originated, 2015 or Prior 6,887      
Financing Receivable, Revolving 0      
Financing Receivable, Revolving, Converted to Term Loan 0      
Total 7,741      
Nonaccrual [Member] | Loans to individuals [Member] | Personal [Member]        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   56    
Non-Graded, Recorded Investment   232    
Nonaccrual [Member] | Loans to individuals [Member] | Personal [Member] | Nonaccruing substandard and doubtful        
Financing Receivable, Credit Quality Indicator Line Items [Abstract]        
Financing Receivable, Originated, 2020 28      
Financing Receivable, Originated, 2019 17      
Financing Receivable, Originated, 2018 57      
Financing Receivable, Originated, 2017 73      
Financing Receivable, Originated, 2016 50      
Financing Receivable, Originated, 2015 or Prior 49      
Financing Receivable, Revolving 45      
Financing Receivable, Revolving, Converted to Term Loan 0      
Total $ 319      
Nonaccrual [Member] | Loans to individuals [Member] | Home Equity Loan        
Recorded Investment [Abstract]        
Internally Risk Graded, Recorded Investment   0    
Non-Graded, Recorded Investment   $ 11,081