XML 62 R53.htm IDEA: XBRL DOCUMENT
v3.22.2

Fees and Commissions Revenue Fees and Commissions (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | $ 173,373 |  | $ 169,415 |  | $ 271,008 |  | $ 331,567 |
Fees and commissions revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 173,373 |  | 169,415 |  | 271,008 |  | 331,567 |
Fees and commission revenue not from contracts with customers | 50,763 | [1] | 58,787 | [2] | 34,677 | [3] | 117,400 | [4]
Fees and commissions revenue from contracts with customers | 122,610 | [5] | 110,628 | [6] | 236,331 | [7] | 214,167 | [8]
Brokerage and trading revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 44,043 |  | 29,408 |  | 16,964 |  | 50,190 |
Fees and commission revenue not from contracts with customers | 31,495 | [1] | 17,527 | [2] | (8,516) | [3] | 25,884 | [4]
Fees and commissions revenue from contracts with customers | 12,548 | [5] | 11,881 | [6] | 25,480 | [7] | 24,306 | [8]
Trading revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 11,991 |  | 13,001 |  | (42,057) |  | 16,717 |
Fees and commission revenue not from contracts with customers | 11,991 | [1] | 13,001 | [2] | (42,057) | [3] | 16,717 | [4]
Fees and commissions revenue from contracts with customers | 0 | [5] | 0 | [6] | 0 | [7] | 0 | [8]
Customer hedging revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 13,133 |  | 1,805 |  | 24,071 |  | 4,397 |
Fees and commission revenue not from contracts with customers | 13,133 | [1] | 1,805 | [2] | 24,071 | [3] | 4,397 | [4]
Fees and commissions revenue from contracts with customers | 0 | [5] | 0 | [6] | 0 | [7] | 0 | [8]
Retail brokerage revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 4,258 |  | 4,528 |  | 8,868 |  | 9,269 |
Fees and commission revenue not from contracts with customers | 0 | [1] | 0 | [2] | 0 | [3] | 0 | [4]
Fees and commissions revenue from contracts with customers | 4,258 | [5] | 4,528 | [6] | 8,868 | [7] | 9,269 | [8]
Insurance brokerage revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 2,818 |  | 2,996 |  | 6,556 |  | 5,912 |
Fees and commission revenue not from contracts with customers | 0 | [1] | 0 | [2] | 0 | [3] | 0 | [4]
Fees and commissions revenue from contracts with customers | 2,818 | [5] | 2,996 | [6] | 6,556 | [7] | 5,912 | [8]
Investment banking revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 11,843 |  | 7,078 |  | 19,526 |  | 13,895 |
Fees and commission revenue not from contracts with customers | 6,371 | [1] | 2,721 | [2] | 9,470 | [3] | 4,770 | [4]
Fees and commissions revenue from contracts with customers | 5,472 | [5] | 4,357 | [6] | 10,056 | [7] | 9,125 | [8]
Transaction card revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 26,940 |  | 24,923 |  | 51,156 |  | 47,353 |
Fees and commission revenue not from contracts with customers | 0 | [1] | 0 | [2] | 0 | [3] | 0 | [4]
Fees and commissions revenue from contracts with customers | 26,940 | [5] | 24,923 | [6] | 51,156 | [7] | 47,353 | [8]
TransFund EFT network revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 21,262 |  | 20,282 |  | 40,285 |  | 39,548 |
Fees and commission revenue not from contracts with customers | 0 | [1] | 0 | [2] | 0 | [3] | 0 | [4]
Fees and commissions revenue from contracts with customers | 21,262 | [5] | 20,282 | [6] | 40,285 | [7] | 39,548 | [8]
Merchant services revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 3,877 |  | 3,452 |  | 7,528 |  | 5,733 |
Fees and commission revenue not from contracts with customers | 0 | [1] | 0 | [2] | 0 | [3] | 0 | [4]
Fees and commissions revenue from contracts with customers | 3,877 | [5] | 3,452 | [6] | 7,528 | [7] | 5,733 | [8]
Corporate card revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 1,801 |  | 1,189 |  | 3,343 |  | 2,072 |
Fees and commission revenue not from contracts with customers | 0 | [1] | 0 | [2] | 0 | [3] | 0 | [4]
Fees and commissions revenue from contracts with customers | 1,801 | [5] | 1,189 | [6] | 3,343 | [7] | 2,072 | [8]
Fiduciary and asset management revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 49,838 |  | 44,832 |  | 96,237 |  | 86,154 |
Fees and commission revenue not from contracts with customers | 0 | [1] | 0 | [2] | 0 | [3] | 0 | [4]
Fees and commissions revenue from contracts with customers | 49,838 | [5] | 44,832 | [6] | 96,237 | [7] | 86,154 | [8]
Personal trust revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 25,676 |  | 25,156 |  | 50,473 |  | 47,133 |
Fees and commission revenue not from contracts with customers | 0 | [1] | 0 | [2] | 0 | [3] | 0 | [4]
Fees and commissions revenue from contracts with customers | 25,676 | [5] | 25,156 | [6] | 50,473 | [7] | 47,133 | [8]
Corporate trust revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 6,476 |  | 3,435 |  | 10,434 |  | 7,224 |
Fees and commission revenue not from contracts with customers | 0 | [1] | 0 | [2] | 0 | [3] | 0 | [4]
Fees and commissions revenue from contracts with customers | 6,476 | [5] | 3,435 | [6] | 10,434 | [7] | 7,224 | [8]
Institutional trust & retirement plan services revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 12,574 |  | 12,828 |  | 25,141 |  | 25,438 |
Fees and commission revenue not from contracts with customers | 0 | [1] | 0 | [2] | 0 | [3] | 0 | [4]
Fees and commissions revenue from contracts with customers | 12,574 | [5] | 12,828 | [6] | 25,141 | [7] | 25,438 | [8]
Investment management services and other revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 5,112 |  | 3,413 |  | 10,189 |  | 6,359 |
Fees and commission revenue not from contracts with customers | 0 | [1] | 0 | [2] | 0 | [3] | 0 | [4]
Fees and commissions revenue from contracts with customers | 5,112 | [5] | 3,413 | [6] | 10,189 | [7] | 6,359 | [8]
Deposit service charges and fees [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 28,500 |  | 25,861 |  | 55,504 |  | 50,070 |
Fees and commission revenue not from contracts with customers | 0 | [1] | 0 | [2] | 0 | [3] | 0 | [4]
Fees and commissions revenue from contracts with customers | 28,500 | [5] | 25,861 | [6] | 55,504 | [7] | 50,070 | [8]
Commercial account service charge revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 14,782 |  | 13,785 |  | 28,877 |  | 26,789 |
Fees and commission revenue not from contracts with customers | 0 | [1] | 0 | [2] | 0 | [3] | 0 | [4]
Fees and commissions revenue from contracts with customers | 14,782 | [5] | 13,785 | [6] | 28,877 | [7] | 26,789 | [8]
Overdraft fee revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 6,595 |  | 4,957 |  | 12,842 |  | 9,637 |
Fees and commission revenue not from contracts with customers | 0 | [1] | 0 | [2] | 0 | [3] | 0 | [4]
Fees and commissions revenue from contracts with customers | 6,595 | [5] | 4,957 | [6] | 12,842 | [7] | 9,637 | [8]
Check card revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 6,015 |  | 6,029 |  | 11,560 |  | 11,356 |
Fees and commission revenue not from contracts with customers | 0 | [1] | 0 | [2] | 0 | [3] | 0 | [4]
Fees and commissions revenue from contracts with customers | 6,015 | [5] | 6,029 | [6] | 11,560 | [7] | 11,356 | [8]
Automated service charge and other deposit fee revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 1,108 |  | 1,090 |  | 2,225 |  | 2,288 |
Fees and commission revenue not from contracts with customers | 0 | [1] | 0 | [2] | 0 | [3] | 0 | [4]
Fees and commissions revenue from contracts with customers | 1,108 | [5] | 1,090 | [6] | 2,225 | [7] | 2,288 | [8]
Mortgage banking revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 11,368 |  | 21,219 |  | 28,018 |  | 58,332 |
Fees and commission revenue not from contracts with customers | 11,368 | [1] | 21,219 | [2] | 28,018 | [3] | 58,332 | [4]
Fees and commissions revenue from contracts with customers | 0 | [5] | 0 | [6] | 0 | [7] | 0 | [8]
Mortgage production revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | (504) |  | 10,004 |  | 4,551 |  | 35,291 |
Fees and commission revenue not from contracts with customers | (504) | [1] | 10,004 | [2] | 4,551 | [3] | 35,291 | [4]
Fees and commissions revenue from contracts with customers | 0 | [5] | 0 | [6] | 0 | [7] | 0 | [8]
Mortgage servicing revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 11,872 |  | 11,215 |  | 23,467 |  | 23,041 |
Fees and commission revenue not from contracts with customers | 11,872 | [1] | 11,215 | [2] | 23,467 | [3] | 23,041 | [4]
Fees and commissions revenue from contracts with customers | 0 | [5] | 0 | [6] | 0 | [7] | 0 | [8]
Other revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 12,684 |  | 23,172 |  | 23,129 |  | 39,468 |
Fees and commission revenue not from contracts with customers | 7,900 | [1] | 20,041 | [2] | 15,175 | [3] | 33,184 | [4]
Fees and commissions revenue from contracts with customers | 4,784 | [5] | 3,131 | [6] | 7,954 | [7] | 6,284 | [8]
Operating Segments [Member] | Commercial [Member] | Fees and commissions revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 59,881 |  | 63,368 |  | 116,845 |  | 113,215 |
Operating Segments [Member] | Commercial [Member] | Brokerage and trading revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 14,809 |  | 9,628 |  | 31,146 |  | 16,093 |
Operating Segments [Member] | Commercial [Member] | Trading revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Operating Segments [Member] | Commercial [Member] | Customer hedging revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 7,740 |  | 5,693 |  | 20,719 |  | 9,900 |
Operating Segments [Member] | Commercial [Member] | Retail brokerage revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Operating Segments [Member] | Commercial [Member] | Insurance brokerage revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Operating Segments [Member] | Commercial [Member] | Investment banking revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 7,069 |  | 3,935 |  | 10,427 |  | 6,193 |
Operating Segments [Member] | Commercial [Member] | Transaction card revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 25,828 |  | 23,871 |  | 48,998 |  | 45,384 |
Operating Segments [Member] | Commercial [Member] | TransFund EFT network revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 20,367 |  | 19,374 |  | 38,520 |  | 37,817 |
Operating Segments [Member] | Commercial [Member] | Merchant services revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 3,867 |  | 3,434 |  | 7,508 |  | 5,700 |
Operating Segments [Member] | Commercial [Member] | Corporate card revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 1,594 |  | 1,063 |  | 2,970 |  | 1,867 |
Operating Segments [Member] | Commercial [Member] | Fiduciary and asset management revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Operating Segments [Member] | Commercial [Member] | Personal trust revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Operating Segments [Member] | Commercial [Member] | Corporate trust revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Operating Segments [Member] | Commercial [Member] | Institutional trust & retirement plan services revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Operating Segments [Member] | Commercial [Member] | Investment management services and other revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Operating Segments [Member] | Commercial [Member] | Deposit service charges and fees [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 13,841 |  | 12,757 |  | 27,026 |  | 24,797 |
Operating Segments [Member] | Commercial [Member] | Commercial account service charge revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 13,791 |  | 12,710 |  | 26,922 |  | 24,698 |
Operating Segments [Member] | Commercial [Member] | Overdraft fee revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 29 |  | 22 |  | 60 |  | 48 |
Operating Segments [Member] | Commercial [Member] | Check card revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Operating Segments [Member] | Commercial [Member] | Automated service charge and other deposit fee revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 21 |  | 25 |  | 44 |  | 51 |
Operating Segments [Member] | Commercial [Member] | Mortgage banking revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Operating Segments [Member] | Commercial [Member] | Mortgage production revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Operating Segments [Member] | Commercial [Member] | Mortgage servicing revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Operating Segments [Member] | Commercial [Member] | Other revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 5,403 |  | 17,112 |  | 9,675 |  | 26,941 |
Operating Segments [Member] | Consumer [Member] | Fees and commissions revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 30,101 |  | 37,714 |  | 64,078 |  | 90,014 |
Operating Segments [Member] | Consumer [Member] | Brokerage and trading revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Operating Segments [Member] | Consumer [Member] | Trading revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Operating Segments [Member] | Consumer [Member] | Customer hedging revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Operating Segments [Member] | Consumer [Member] | Retail brokerage revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Operating Segments [Member] | Consumer [Member] | Insurance brokerage revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Operating Segments [Member] | Consumer [Member] | Investment banking revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Operating Segments [Member] | Consumer [Member] | Transaction card revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 922 |  | 941 |  | 1,818 |  | 1,791 |
Operating Segments [Member] | Consumer [Member] | TransFund EFT network revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 912 |  | 924 |  | 1,798 |  | 1,758 |
Operating Segments [Member] | Consumer [Member] | Merchant services revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 10 |  | 17 |  | 20 |  | 33 |
Operating Segments [Member] | Consumer [Member] | Corporate card revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Operating Segments [Member] | Consumer [Member] | Fiduciary and asset management revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Operating Segments [Member] | Consumer [Member] | Personal trust revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Operating Segments [Member] | Consumer [Member] | Corporate trust revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Operating Segments [Member] | Consumer [Member] | Institutional trust & retirement plan services revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Operating Segments [Member] | Consumer [Member] | Investment management services and other revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Operating Segments [Member] | Consumer [Member] | Deposit service charges and fees [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 14,087 |  | 12,457 |  | 27,382 |  | 24,003 |
Operating Segments [Member] | Consumer [Member] | Commercial account service charge revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 469 |  | 469 |  | 919 |  | 903 |
Operating Segments [Member] | Consumer [Member] | Overdraft fee revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 6,544 |  | 4,916 |  | 12,737 |  | 9,551 |
Operating Segments [Member] | Consumer [Member] | Check card revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 6,013 |  | 6,030 |  | 11,558 |  | 11,357 |
Operating Segments [Member] | Consumer [Member] | Automated service charge and other deposit fee revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 1,061 |  | 1,042 |  | 2,168 |  | 2,192 |
Operating Segments [Member] | Consumer [Member] | Mortgage banking revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 11,864 |  | 21,672 |  | 28,995 |  | 59,236 |
Operating Segments [Member] | Consumer [Member] | Mortgage production revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | (504) |  | 10,004 |  | 4,551 |  | 35,291 |
Operating Segments [Member] | Consumer [Member] | Mortgage servicing revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 12,368 |  | 11,668 |  | 24,444 |  | 23,945 |
Operating Segments [Member] | Consumer [Member] | Other revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 3,228 |  | 2,644 |  | 5,883 |  | 4,984 |
Operating Segments [Member] | Wealth Management [Member] | Fees and commissions revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 86,771 |  | 78,841 |  | 111,794 |  | 144,525 |
Operating Segments [Member] | Wealth Management [Member] | Brokerage and trading revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 24,146 |  | 24,207 |  | (16,412) |  | 40,439 |
Operating Segments [Member] | Wealth Management [Member] | Trading revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 11,991 |  | 13,002 |  | (42,057) |  | 16,718 |
Operating Segments [Member] | Wealth Management [Member] | Customer hedging revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 305 |  | 55 |  | 1,122 |  | 146 |
Operating Segments [Member] | Wealth Management [Member] | Retail brokerage revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 4,258 |  | 4,528 |  | 8,868 |  | 9,269 |
Operating Segments [Member] | Wealth Management [Member] | Insurance brokerage revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 2,818 |  | 2,996 |  | 6,556 |  | 5,912 |
Operating Segments [Member] | Wealth Management [Member] | Investment banking revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 4,774 |  | 3,626 |  | 9,099 |  | 8,394 |
Operating Segments [Member] | Wealth Management [Member] | Transaction card revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 82 |  | 20 |  | 141 |  | 35 |
Operating Segments [Member] | Wealth Management [Member] | TransFund EFT network revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | (19) |  | (17) |  | (36) |  | (30) |
Operating Segments [Member] | Wealth Management [Member] | Merchant services revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Operating Segments [Member] | Wealth Management [Member] | Corporate card revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 101 |  | 37 |  | 177 |  | 65 |
Operating Segments [Member] | Wealth Management [Member] | Fiduciary and asset management revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 49,838 |  | 44,962 |  | 96,281 |  | 86,241 |
Operating Segments [Member] | Wealth Management [Member] | Personal trust revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 25,676 |  | 25,156 |  | 50,473 |  | 47,133 |
Operating Segments [Member] | Wealth Management [Member] | Corporate trust revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 6,476 |  | 3,435 |  | 10,434 |  | 7,224 |
Operating Segments [Member] | Wealth Management [Member] | Institutional trust & retirement plan services revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 12,574 |  | 12,828 |  | 25,141 |  | 25,438 |
Operating Segments [Member] | Wealth Management [Member] | Investment management services and other revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 5,112 |  | 3,543 |  | 10,233 |  | 6,446 |
Operating Segments [Member] | Wealth Management [Member] | Deposit service charges and fees [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 569 |  | 644 |  | 1,091 |  | 1,267 |
Operating Segments [Member] | Wealth Management [Member] | Commercial account service charge revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 523 |  | 607 |  | 1,036 |  | 1,188 |
Operating Segments [Member] | Wealth Management [Member] | Overdraft fee revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 21 |  | 17 |  | 44 |  | 36 |
Operating Segments [Member] | Wealth Management [Member] | Check card revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Operating Segments [Member] | Wealth Management [Member] | Automated service charge and other deposit fee revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 25 |  | 20 |  | 11 |  | 43 |
Operating Segments [Member] | Wealth Management [Member] | Mortgage banking revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Operating Segments [Member] | Wealth Management [Member] | Mortgage production revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Operating Segments [Member] | Wealth Management [Member] | Mortgage servicing revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Operating Segments [Member] | Wealth Management [Member] | Other revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 12,136 |  | 9,008 |  | 30,693 |  | 16,543 |
Funds Management and Other [Member] | Fees and commissions revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | (3,380) |  | (10,508) |  | (21,709) |  | (16,187) |
Funds Management and Other [Member] | Brokerage and trading revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 5,088 |  | (4,427) |  | 2,230 |  | (6,342) |
Funds Management and Other [Member] | Trading revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | (1) |  | 0 |  | (1) |
Funds Management and Other [Member] | Customer hedging revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 5,088 |  | (3,943) |  | 2,230 |  | (5,649) |
Funds Management and Other [Member] | Retail brokerage revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Funds Management and Other [Member] | Insurance brokerage revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Funds Management and Other [Member] | Investment banking revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | (483) |  | 0 |  | (692) |
Funds Management and Other [Member] | Transaction card revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 108 |  | 91 |  | 199 |  | 143 |
Funds Management and Other [Member] | TransFund EFT network revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 2 |  | 1 |  | 3 |  | 3 |
Funds Management and Other [Member] | Merchant services revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 1 |  | 0 |  | 0 |
Funds Management and Other [Member] | Corporate card revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 106 |  | 89 |  | 196 |  | 140 |
Funds Management and Other [Member] | Fiduciary and asset management revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | (130) |  | (44) |  | (87) |
Funds Management and Other [Member] | Personal trust revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Funds Management and Other [Member] | Corporate trust revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Funds Management and Other [Member] | Institutional trust & retirement plan services revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Funds Management and Other [Member] | Investment management services and other revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | (130) |  | (44) |  | (87) |
Funds Management and Other [Member] | Deposit service charges and fees [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 3 |  | 3 |  | 5 |  | 3 |
Funds Management and Other [Member] | Commercial account service charge revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | (1) |  | (1) |  | 0 |  | 0 |
Funds Management and Other [Member] | Overdraft fee revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 1 |  | 2 |  | 1 |  | 2 |
Funds Management and Other [Member] | Check card revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 2 |  | (1) |  | 2 |  | (1) |
Funds Management and Other [Member] | Automated service charge and other deposit fee revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 1 |  | 3 |  | 2 |  | 2 |
Funds Management and Other [Member] | Mortgage banking revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | (496) |  | (453) |  | (977) |  | (904) |
Funds Management and Other [Member] | Mortgage production revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | 0 |  | 0 |  | 0 |  | 0 |
Funds Management and Other [Member] | Mortgage servicing revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | (496) |  | (453) |  | (977) |  | (904) |
Funds Management and Other [Member] | Other revenue [Member] |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |
Total fees and commissions | $ (8,083) |  | $ (5,592) |  | $ (23,122) |  | $ (9,000) |
[1] | Out of scope revenue generally relates to financial instruments or contractual rights and obligations within the scope of other applicable accounting guidance.
[2] | Out of scope revenue generally relates to financial instruments or contractual rights and obligations within the scope of other applicable accounting guidance.
[3] | Out of scope revenue generally relates to financial instruments or contractual rights and obligations within the scope of other applicable accounting guidance.
[4] | Out of scope revenue generally relates to financial instruments or contractual rights and obligations within the scope of other applicable accounting guidance.
[5] | In scope revenue represents revenue subject to FASB ASC Topic 606, Revenue from Contracts with Customers.
[6] | In scope revenue represents revenue subject to FASB ASC Topic 606, Revenue from Contracts with Customers.
[7] | In scope revenue represents revenue subject to FASB ASC Topic 606, Revenue from Contracts with Customers
[8] | In scope revenue represents revenue subject to FASB ASC Topic 606, Revenue from Contracts with Customers

X
- Definition Represents fees and commissions revenue not in the scope of ASC 606, Revenue from Contracts with Customers, related to financial instruments or from contractual rights and obligations within the scope of other applicable accounting guidance. + References No definition available. + Details
Name: | bokf_Feesandcommissionrevenuenotfromcontractswithcustomers
Namespace Prefix: | bokf_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Total fees and commissions earned from providing services such as maintaining: depositor accounts; fiduciary and trust; brokerage and underwriting; mortgage; transaction cards; and other revenue such as bank owned life insurance. + References No definition available. + Details
Name: | bokf_TotalFeesAndCommissions
Namespace Prefix: | bokf_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DisaggregationOfRevenueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9031-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130543-203045 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9054-108599 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 924 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856 + Details
Name: | us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | srt_ProductOrServiceAxis=bokf_FeesandcommissionsrevenueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=bokf_BrokerageandtradingrevenueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=bokf_GainlossontradingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=bokf_CustomerhedgingrevenueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=bokf_RetailbrokeragerevenueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=bokf_InsurancebrokeragerevenueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=bokf_InvestmentbankingrevenueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=bokf_TransactioncardrevenueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=bokf_TransFundEFTnetworkrevenueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=bokf_MerchantservicesrevenueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=bokf_CorporatecardrevenueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=us-gaap_FiduciaryAndTrustMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=bokf_PersonaltrustrevenueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=bokf_CorporatetrustrevenueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=bokf_InstitutionaltrustretirementplanservicesrevenueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=bokf_InvestmentmanagementservicesandotherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=us-gaap_DepositAccountMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=bokf_CommercialaccountservicechargerevenueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=bokf_OverdraftfeerevenueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=bokf_CheckcardfeerevenueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=bokf_AutomatedservicechargeandotherdepositfeerevenueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=us-gaap_MortgageBankingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=bokf_MortgageproductionrevenueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=bokf_MortgageservicingrevenueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=us-gaap_FinancialServiceOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_OperatingSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=bokf_CommercialMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=bokf_ConsumerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=bokf_WealthManagementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_CorporateNonSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |