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Reportable Segments (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Segment Reporting Information [Line Items] |  |  |
Net interest and dividend revenue from external sources | $ 1,211,380 | $ 1,118,033 | $ 1,108,444
Net interest revenue (expense) from internal sources | 0 | 0 | 0
Net interest and dividend revenue | 1,211,380 | 1,118,033 | 1,108,444
Provision for credit losses | 30,000 | (100,000) | 222,592
Net interest and dividend revenue after provision for credit losses | 1,181,380 | 1,218,033 | 885,852
Other operating revenue | 643,257 | 755,775 | 842,320
Other operating expense | 1,164,480 | 1,177,708 | 1,164,308
Net direct contribution | 660,157 | 796,100 | 563,864
Gain (loss) on financial instruments, net | 0 | 0 | 0
Change in fair value of mortgage servicing rights | 0 | 0 | 0
Gain (loss) on repossessed assets, net | 0 | 0 | 0
Corporate expense allocations | 0 | 0 | 0
Net income before taxes | 660,157 | 796,100 | 563,864
Federal and state income taxes | 139,864 | 179,775 | 128,793
Net income | 520,293 | 616,325 | 435,071
Net income (loss) attributable to Non-controlling interests | 20 | (1,796) | 41
Net income attributable to BOK Financial Corp. shareholders | 520,273 | 618,121 | 435,030
Average assets | 47,024,636 | 50,151,703 | 48,704,390
Operating Segments [Member] | Commercial [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net interest and dividend revenue from external sources | 818,213 | 606,902 | 714,932
Net interest revenue (expense) from internal sources | (73,764) | (71,167) | (126,444)
Net interest and dividend revenue | 744,449 | 535,735 | 588,488
Provision for credit losses | 17,726 | 31,128 | 69,475
Net interest and dividend revenue after provision for credit losses | 726,723 | 504,607 | 519,013
Other operating revenue | 241,594 | 262,402 | 187,361
Other operating expense | 290,717 | 281,089 | 258,903
Net direct contribution | 677,600 | 485,920 | 447,471
Gain (loss) on financial instruments, net | 1 | 154 | 193
Change in fair value of mortgage servicing rights | 0 | 0 | 0
Gain (loss) on repossessed assets, net | (1,903) | 13,001 | (2,677)
Corporate expense allocations | 67,337 | 49,941 | 24,862
Net income before taxes | 608,361 | 449,134 | 420,125
Federal and state income taxes | 148,000 | 120,618 | 114,120
Net income | 460,361 | 328,516 | 306,005
Net income (loss) attributable to Non-controlling interests | 0 | 0 | 0
Net income attributable to BOK Financial Corp. shareholders | 460,361 | 328,516 | 306,005
Average assets | 29,084,957 | 28,536,881 | 26,994,075
Operating Segments [Member] | Consumer [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net interest and dividend revenue from external sources | 69,646 | 67,856 | 78,004
Net interest revenue (expense) from internal sources | 88,603 | 35,671 | 69,000
Net interest and dividend revenue | 158,249 | 103,527 | 147,004
Provision for credit losses | 5,260 | 4,009 | 2,805
Net interest and dividend revenue after provision for credit losses | 152,989 | 99,518 | 144,199
Other operating revenue | 121,819 | 173,341 | 243,719
Other operating expense | 209,210 | 209,596 | 230,402
Net direct contribution | 65,598 | 63,263 | 157,516
Gain (loss) on financial instruments, net | (93,346) | (21,871) | 95,344
Change in fair value of mortgage servicing rights | 80,261 | 41,637 | (79,524)
Gain (loss) on repossessed assets, net | 139 | 85 | 276
Corporate expense allocations | 44,965 | 46,010 | 42,155
Net income before taxes | 7,687 | 37,104 | 131,457
Federal and state income taxes | 1,798 | 9,461 | 33,483
Net income | 5,889 | 27,643 | 97,974
Net income (loss) attributable to Non-controlling interests | 0 | 0 | 0
Net income attributable to BOK Financial Corp. shareholders | 5,889 | 27,643 | 97,974
Average assets | 10,230,437 | 10,029,687 | 9,842,114
Operating Segments [Member] | Wealth Management [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net interest and dividend revenue from external sources | 155,974 | 214,458 | 130,818
Net interest revenue (expense) from internal sources | 5,623 | (386) | (13,528)
Net interest and dividend revenue | 161,597 | 214,072 | 117,290
Provision for credit losses | (175) | (223) | (209)
Net interest and dividend revenue after provision for credit losses | 161,772 | 214,295 | 117,499
Other operating revenue | 339,501 | 298,962 | 398,834
Other operating expense | 312,177 | 320,726 | 326,016
Net direct contribution | 189,096 | 192,531 | 190,317
Gain (loss) on financial instruments, net | 4 | 0 | 4
Change in fair value of mortgage servicing rights | 0 | 0 | 0
Gain (loss) on repossessed assets, net | 0 | 0 | 0
Corporate expense allocations | 50,241 | 40,341 | 35,359
Net income before taxes | 138,859 | 152,190 | 154,962
Federal and state income taxes | 32,686 | 38,944 | 39,660
Net income | 106,173 | 113,246 | 115,302
Net income (loss) attributable to Non-controlling interests | 0 | 0 | 0
Net income attributable to BOK Financial Corp. shareholders | 106,173 | 113,246 | 115,302
Average assets | 16,209,684 | 19,425,475 | 15,695,646
Funds Management and Other [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net interest and dividend revenue from external sources | 167,547 | 228,817 | 184,690
Net interest revenue (expense) from internal sources | (20,462) | 35,882 | 70,972
Net interest and dividend revenue | 147,085 | 264,699 | 255,662
Provision for credit losses | 7,189 | (134,914) | 150,521
Net interest and dividend revenue after provision for credit losses | 139,896 | 399,613 | 105,141
Other operating revenue | (59,657) | 21,070 | 12,406
Other operating expense | 352,376 | 366,297 | 348,987
Net direct contribution | (272,137) | 54,386 | (231,440)
Gain (loss) on financial instruments, net | 93,341 | 21,717 | (95,541)
Change in fair value of mortgage servicing rights | (80,261) | (41,637) | 79,524
Gain (loss) on repossessed assets, net | 1,764 | (13,086) | 2,401
Corporate expense allocations | (162,543) | (136,292) | (102,376)
Net income before taxes | (94,750) | 157,672 | (142,680)
Federal and state income taxes | (42,620) | 10,752 | (58,470)
Net income | (52,130) | 146,920 | (84,210)
Net income (loss) attributable to Non-controlling interests | 20 | (1,796) | 41
Net income attributable to BOK Financial Corp. shareholders | (52,150) | 148,716 | (84,251)
Average assets | $ (8,500,442) | $ (7,840,340) | $ (3,827,445)

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