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Loans Loans - Weighted Average Risk Grade for All Commercial Loans by Class and Year of Origination (Details) $ in Thousands | Jun. 30, 2021 USD ($) Grade | Dec. 31, 2020 USD ($) Grade
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and Leases Receivable, Net of Deferred Income | $ 16,596,326 | $ 17,481,309
Commercial Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 742,844 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 834,516 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 511,102 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 276,574 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 200,227 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 190,390 |
Financing Receivable, Revolving | 1,907,724 |
Loans and Leases Receivable, Net of Deferred Income | $ 4,755,345 | $ 4,955,341
Weighted Average Risk Grade For Loans | Grade | 6.32 | 6.45
Commercial and Industrial Total Energy Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 415,757 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 14,088 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 41,212 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 12,931 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 6,623 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 6,412 |
Financing Receivable, Revolving | 495,458 |
Loans and Leases Receivable, Net of Deferred Income | $ 1,023,202 | $ 1,235,198
Weighted Average Risk Grade For Loans | Grade | 6.73 | 6.85
Commercial Real Estate Buildings Land And Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 738,386 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 1,455,839 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 1,031,482 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 747,435 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 687,351 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 1,086,426 |
Financing Receivable, Revolving | 58,703 |
Loans and Leases Receivable, Net of Deferred Income | $ 5,889,737 | $ 5,796,653
Weighted Average Risk Grade For Loans | Grade | 7.28 | 7.34
Construction Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 298,862 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 294,840 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 367,127 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 48,269 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 542 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 2,646 |
Financing Receivable, Revolving | 154,023 |
Loans and Leases Receivable, Net of Deferred Income | $ 1,166,309 | $ 1,223,814
Weighted Average Risk Grade For Loans | Grade | 7.17 | 7.22
Commercial Real Estate Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 1,037,248 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 1,750,679 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 1,398,609 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 795,704 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 687,893 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 1,089,072 |
Financing Receivable, Revolving | 212,726 |
Loans and Leases Receivable, Net of Deferred Income | $ 7,056,046 | $ 7,020,467
Weighted Average Risk Grade For Loans | Grade | 7.26 | 7.32
Risk Grade One To Eight [Member] | Commercial Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 704,030 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 757,923 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 458,789 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 231,663 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 178,242 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 177,200 |
Financing Receivable, Revolving | 1,796,022 |
Loans and Leases Receivable, Net of Deferred Income | $ 4,373,376 | $ 4,506,121
Weighted Average Risk Grade For Loans | Grade | 6.04 | 6.13
Risk Grade One To Eight [Member] | Commercial and Industrial Total Energy Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 368,434 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 11,610 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 13,300 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 8,067 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 6,623 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 4,734 |
Financing Receivable, Revolving | 430,760 |
Loans and Leases Receivable, Net of Deferred Income | $ 859,463 | $ 968,144
Weighted Average Risk Grade For Loans | Grade | 6.03 | 5.99
Risk Grade One To Eight [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 707,609 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 1,258,571 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 920,940 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 625,954 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 548,979 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 923,486 |
Financing Receivable, Revolving | 51,468 |
Loans and Leases Receivable, Net of Deferred Income | $ 5,107,543 | $ 5,047,873
Weighted Average Risk Grade For Loans | Grade | 6.90 | 6.97
Risk Grade One To Eight [Member] | Construction Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 295,583 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 262,942 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 364,655 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 48,269 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 2,646 |
Financing Receivable, Revolving | 140,472 |
Loans and Leases Receivable, Net of Deferred Income | $ 1,114,567 | $ 1,110,025
Weighted Average Risk Grade For Loans | Grade | 7.08 | 6.99
Risk Grade One To Eight [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and Leases Receivable, Net of Deferred Income |  | $ 6,157,898
Weighted Average Risk Grade For Loans | Grade |  | 6.98
Risk Grade Nine [Member] | Commercial Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 11,275 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 49,069 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 36,452 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 32,061 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 15,796 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 12,166 |
Financing Receivable, Revolving | 75,803 |
Loans and Leases Receivable, Net of Deferred Income | $ 240,055 | $ 256,198
Weighted Average Risk Grade For Loans | Grade | 9.00 | 9.00
Risk Grade Nine [Member] | Commercial and Industrial Total Energy Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 34,516 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 806 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 2,041 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 986 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 0 |
Financing Receivable, Revolving | 22,953 |
Loans and Leases Receivable, Net of Deferred Income | $ 66,359 | $ 133,547
Weighted Average Risk Grade For Loans | Grade | 9.00 | 9.00
Risk Grade Nine [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 22,692 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 155,019 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 68,831 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 48,895 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 38,034 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 33,759 |
Financing Receivable, Revolving | 4,235 |
Loans and Leases Receivable, Net of Deferred Income | $ 373,909 | $ 325,227
Weighted Average Risk Grade For Loans | Grade | 9.00 | 9.00
Risk Grade Nine [Member] | Construction Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 3,279 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 30,231 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 2,472 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 0 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 542 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 0 |
Financing Receivable, Revolving | 13,551 |
Loans and Leases Receivable, Net of Deferred Income | $ 50,075 | $ 72,287
Weighted Average Risk Grade For Loans | Grade | 9.00 | 9.00
Risk Grade Nine [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and Leases Receivable, Net of Deferred Income |  | $ 397,514
Weighted Average Risk Grade For Loans | Grade |  | 9.00
Risk Grade Ten [Member] | Commercial Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 26,973 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 8,903 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 1,861 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 6,903 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 2,138 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 157 |
Financing Receivable, Revolving | 18,781 |
Loans and Leases Receivable, Net of Deferred Income | $ 68,734 | $ 125,977
Weighted Average Risk Grade For Loans | Grade | 10.00 | 10.00
Risk Grade Ten [Member] | Commercial and Industrial Total Energy Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 1,267 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 127 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 767 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 1,057 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 742 |
Financing Receivable, Revolving | 1,493 |
Loans and Leases Receivable, Net of Deferred Income | $ 9,065 | $ 46,427
Weighted Average Risk Grade For Loans | Grade | 10.00 | 10.00
Risk Grade Ten [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 5,642 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 19,719 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 25,328 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 59,859 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 65,261 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 72,057 |
Financing Receivable, Revolving | 0 |
Loans and Leases Receivable, Net of Deferred Income | $ 253,053 | $ 258,454
Weighted Average Risk Grade For Loans | Grade | 10.00 | 10.00
Risk Grade Ten [Member] | Construction Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 0 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 0 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 0 |
Financing Receivable, Revolving | 0 |
Loans and Leases Receivable, Net of Deferred Income | $ 0 | $ 38,962
Weighted Average Risk Grade For Loans | Grade | 10.00 | 10.00
Risk Grade Ten [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and Leases Receivable, Net of Deferred Income |  | $ 297,416
Weighted Average Risk Grade For Loans | Grade |  | 10.00
Risk Grade Eleven [Member] | Commercial Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 566 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 9,716 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 11,697 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 5,006 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 3,016 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 788 |
Financing Receivable, Revolving | 16,790 |
Loans and Leases Receivable, Net of Deferred Income | $ 57,011 | $ 47,196
Weighted Average Risk Grade For Loans | Grade | 11.00 | 11.00
Risk Grade Eleven [Member] | Commercial and Industrial Total Energy Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 11,540 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 1,022 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 18,249 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 1,163 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 601 |
Financing Receivable, Revolving | 26,307 |
Loans and Leases Receivable, Net of Deferred Income | $ 62,532 | $ 63,912
Weighted Average Risk Grade For Loans | Grade | 11.00 | 11.00
Risk Grade Eleven [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 897 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 20,635 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 13,461 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 11,885 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 32,984 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 53,242 |
Financing Receivable, Revolving | 3,000 |
Loans and Leases Receivable, Net of Deferred Income | $ 142,052 | $ 149,362
Weighted Average Risk Grade For Loans | Grade | 11.00 | 11.00
Risk Grade Eleven [Member] | Construction Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 0 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 0 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 0 |
Financing Receivable, Revolving | 0 |
Loans and Leases Receivable, Net of Deferred Income | $ 0 | $ 856
Weighted Average Risk Grade For Loans | Grade | 11.00 | 11.00
Risk Grade Eleven [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and Leases Receivable, Net of Deferred Income |  | $ 150,218
Weighted Average Risk Grade For Loans | Grade |  | 11.00
Risk Grade Twelve [Member] | Commercial Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 0 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 6,325 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 1,759 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 941 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 560 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 79 |
Financing Receivable, Revolving | 328 |
Loans and Leases Receivable, Net of Deferred Income | $ 12,343 | $ 14,528
Weighted Average Risk Grade For Loans | Grade | 12.00 | 12.00
Risk Grade Twelve [Member] | Commercial and Industrial Total Energy Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 0 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 42 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 5,165 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 235 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 335 |
Financing Receivable, Revolving | 6,093 |
Loans and Leases Receivable, Net of Deferred Income | $ 11,973 | $ 13,741
Weighted Average Risk Grade For Loans | Grade | 12.00 | 12.00
Risk Grade Twelve [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 1,346 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 1,895 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 2,622 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 842 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 2,093 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 3,632 |
Financing Receivable, Revolving | 0 |
Loans and Leases Receivable, Net of Deferred Income | $ 12,430 | $ 15,224
Weighted Average Risk Grade For Loans | Grade | 12.00 | 12.00
Risk Grade Twelve [Member] | Construction Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 0 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 1,467 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 0 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 0 |
Financing Receivable, Revolving | 0 |
Loans and Leases Receivable, Net of Deferred Income | $ 1,467 | $ 1,684
Weighted Average Risk Grade For Loans | Grade | 12.00 | 12.00
Risk Grade Twelve [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and Leases Receivable, Net of Deferred Income |  | $ 16,908
Weighted Average Risk Grade For Loans | Grade |  | 12.00
Risk Grade Thirteen [Member] | Commercial Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 0 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 2,580 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 544 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 0 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 475 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 0 |
Financing Receivable, Revolving | 0 |
Loans and Leases Receivable, Net of Deferred Income | $ 3,826 | $ 5,321
Weighted Average Risk Grade For Loans | Grade | 13.00 | 13.00
Risk Grade Thirteen [Member] | Commercial and Industrial Total Energy Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 0 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 481 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 1,690 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 1,423 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 0 |
Financing Receivable, Revolving | 7,852 |
Loans and Leases Receivable, Net of Deferred Income | $ 13,810 | $ 9,427
Weighted Average Risk Grade For Loans | Grade | 13.00 | 13.00
Risk Grade Thirteen [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 200 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 300 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 0 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 250 |
Financing Receivable, Revolving | 0 |
Loans and Leases Receivable, Net of Deferred Income | $ 750 | $ 513
Weighted Average Risk Grade For Loans | Grade | 13.00 | 13.00
Risk Grade Thirteen [Member] | Construction Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 0 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 200 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 0 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 0 |
Financing Receivable, Revolving | 0 |
Loans and Leases Receivable, Net of Deferred Income | $ 200 | $ 0
Weighted Average Risk Grade For Loans | Grade | 13.00 | 13.00
Risk Grade Thirteen [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and Leases Receivable, Net of Deferred Income |  | $ 513
Weighted Average Risk Grade For Loans | Grade |  | 13.00
Revolving Credit Facility [Member] | Commercial Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 6.19 |
Revolving Credit Facility [Member] | Commercial and Industrial Total Energy Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 6.58 |
Revolving Credit Facility [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 7.20 |
Revolving Credit Facility [Member] | Construction Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 7.14 |
Revolving Credit Facility [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 7.16 |
Revolving Loans Converted to Term [Member] | Commercial Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Revolving, Converted to Term Loan | $ 91,968 |
Weighted Average Risk Grade For Loans | Grade | 7.36 |
Revolving Loans Converted to Term [Member] | Commercial and Industrial Total Energy Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Revolving, Converted to Term Loan | $ 30,721 |
Weighted Average Risk Grade For Loans | Grade | 8.80 |
Revolving Loans Converted to Term [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Revolving, Converted to Term Loan | $ 84,115 |
Weighted Average Risk Grade For Loans | Grade | 7.31 |
Revolving Loans Converted to Term [Member] | Construction Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Revolving, Converted to Term Loan | $ 0 |
Weighted Average Risk Grade For Loans | Grade | 0 |
Revolving Loans Converted to Term [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Revolving, Converted to Term Loan | $ 84,115 |
Weighted Average Risk Grade For Loans | Grade | 7.31 |
Revolving Loans Converted to Term [Member] | Risk Grade One To Eight [Member] | Commercial Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Revolving, Converted to Term Loan | $ 69,507 |
Revolving Loans Converted to Term [Member] | Risk Grade One To Eight [Member] | Commercial and Industrial Total Energy Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Revolving, Converted to Term Loan | 15,935 |
Revolving Loans Converted to Term [Member] | Risk Grade One To Eight [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Revolving, Converted to Term Loan | 70,536 |
Revolving Loans Converted to Term [Member] | Risk Grade One To Eight [Member] | Construction Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Revolving, Converted to Term Loan | 0 |
Revolving Loans Converted to Term [Member] | Risk Grade Nine [Member] | Commercial Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Revolving, Converted to Term Loan | 7,433 |
Revolving Loans Converted to Term [Member] | Risk Grade Nine [Member] | Commercial and Industrial Total Energy Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Revolving, Converted to Term Loan | 5,057 |
Revolving Loans Converted to Term [Member] | Risk Grade Nine [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Revolving, Converted to Term Loan | 2,444 |
Revolving Loans Converted to Term [Member] | Risk Grade Nine [Member] | Construction Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Revolving, Converted to Term Loan | 0 |
Revolving Loans Converted to Term [Member] | Risk Grade Ten [Member] | Commercial Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Revolving, Converted to Term Loan | 3,018 |
Revolving Loans Converted to Term [Member] | Risk Grade Ten [Member] | Commercial and Industrial Total Energy Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Revolving, Converted to Term Loan | 3,612 |
Revolving Loans Converted to Term [Member] | Risk Grade Ten [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Revolving, Converted to Term Loan | 5,187 |
Revolving Loans Converted to Term [Member] | Risk Grade Ten [Member] | Construction Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Revolving, Converted to Term Loan | 0 |
Revolving Loans Converted to Term [Member] | Risk Grade Eleven [Member] | Commercial Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Revolving, Converted to Term Loan | 9,432 |
Revolving Loans Converted to Term [Member] | Risk Grade Eleven [Member] | Commercial and Industrial Total Energy Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Revolving, Converted to Term Loan | 3,650 |
Revolving Loans Converted to Term [Member] | Risk Grade Eleven [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Revolving, Converted to Term Loan | 5,948 |
Revolving Loans Converted to Term [Member] | Risk Grade Eleven [Member] | Construction Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Revolving, Converted to Term Loan | 0 |
Revolving Loans Converted to Term [Member] | Risk Grade Twelve [Member] | Commercial Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Revolving, Converted to Term Loan | 2,351 |
Revolving Loans Converted to Term [Member] | Risk Grade Twelve [Member] | Commercial and Industrial Total Energy Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Revolving, Converted to Term Loan | 103 |
Revolving Loans Converted to Term [Member] | Risk Grade Twelve [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Revolving, Converted to Term Loan | 0 |
Revolving Loans Converted to Term [Member] | Risk Grade Twelve [Member] | Construction Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Revolving, Converted to Term Loan | 0 |
Revolving Loans Converted to Term [Member] | Risk Grade Thirteen [Member] | Commercial Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Revolving, Converted to Term Loan | 227 |
Revolving Loans Converted to Term [Member] | Risk Grade Thirteen [Member] | Commercial and Industrial Total Energy Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Revolving, Converted to Term Loan | 2,364 |
Revolving Loans Converted to Term [Member] | Risk Grade Thirteen [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Revolving, Converted to Term Loan | 0 |
Revolving Loans Converted to Term [Member] | Risk Grade Thirteen [Member] | Construction Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing Receivable, Revolving, Converted to Term Loan | $ 0 |
2021 [Member] | Commercial Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 5.80 |
2021 [Member] | Commercial and Industrial Total Energy Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 6.31 |
2021 [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 7.20 |
2021 [Member] | Construction Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 7.05 |
2021 [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 7.16 |
2020 [Member] | Commercial Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 6.42 |
2020 [Member] | Commercial and Industrial Total Energy Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 8.09 |
2020 [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 7.27 |
2020 [Member] | Construction Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 6.99 |
2020 [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 7.23 |
2019 [Member] | Commercial Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 6.89 |
2019 [Member] | Commercial and Industrial Total Energy Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 9.85 |
2019 [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 7.28 |
2019 [Member] | Construction Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 7.35 |
2019 [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 7.30 |
2018 [Member] | Commercial Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 7.16 |
2018 [Member] | Commercial and Industrial Total Energy Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 8.63 |
2018 [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 7.47 |
2018 [Member] | Construction Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 7.73 |
2018 [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 7.48 |
2017 [Member] | Commercial Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 6.26 |
2017 [Member] | Commercial and Industrial Total Energy Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 7.40 |
2017 [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 7.39 |
2017 [Member] | Construction Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 9.00 |
2017 [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 7.39 |
Prior Years [Member] | Commercial Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 5.92 |
Prior Years [Member] | Commercial and Industrial Total Energy Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 7.95 |
Prior Years [Member] | Commercial Real Estate Buildings Land And Other Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 7.13 |
Prior Years [Member] | Construction Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 6.78 |
Prior Years [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Weighted Average Risk Grade For Loans | Grade | 7.13 |

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