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Reportable Segments (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Segment Reporting Information [Line Items] |  |  |  |
Net interest income from external sources | $ 296,021 | $ 322,261 | $ 589,593 | $ 674,609
Net interest income (expense) from internal sources | 0 | 0 | 0 | 0
Net interest income | 296,021 | 322,261 | 589,593 | 674,609
Net loans charged off and provisions for credit losses | 8,000 | 17,000 | 16,000 | 33,000
Net interest income after provision for credit losses | 288,021 | 305,261 | 573,593 | 641,609
Other operating revenue | 259,704 | 209,049 | 421,405 | 386,914
Other operating expense | 336,690 | 318,673 | 677,074 | 624,485
Net direct contribution | 211,035 | 195,637 | 317,924 | 404,038
Gain (loss) on financial instruments, net | 0 | 0 | 0 | 0
Change in fair value of mortgage servicing rights | 0 | 0 | 0 | 0
Gain (loss) on repossessed assets, net | 0 | 0 | 0 | 0
Corporate expense allocations | 0 | 0 | 0 | 0
Net income before taxes | 211,035 | 195,637 | 317,924 | 404,038
Federal and state income taxes | 47,303 | 44,001 | 70,498 | 89,906
Net income | 163,732 | 151,636 | 247,426 | 314,132
Net income attributable to non-controlling interests | 19 | 328 | 10 | 456
Net income attributable to BOK Financial Corp. shareholders | 163,713 | 151,308 | 247,416 | 313,676
Average assets | 51,195,199 | 47,908,107 | 50,611,385 | 46,950,607
Operating Segments [Member] | Commercial [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net interest income from external sources | 283,328 | 299,712 | 566,084 | 587,970
Net interest income (expense) from internal sources | (79,593) | (77,975) | (158,354) | (139,134)
Net interest income | 203,735 | 221,737 | 407,730 | 448,836
Net loans charged off and provisions for credit losses | 6,134 | 6,000 | 10,294 | 6,076
Net interest income after provision for credit losses | 197,601 | 215,737 | 397,436 | 442,760
Other operating revenue | 54,536 | 68,828 | 104,542 | 125,673
Other operating expense | 76,114 | 77,559 | 146,209 | 150,693
Net direct contribution | 176,023 | 207,006 | 355,769 | 417,740
Gain (loss) on financial instruments, net | 168 | 231 | 335 | 173
Change in fair value of mortgage servicing rights | 0 | 0 | 0 | 0
Gain (loss) on repossessed assets, net | 0 | 408 | 0 | 1,267
Corporate expense allocations | 17,381 | 21,404 | 35,778 | 39,122
Net income before taxes | 158,810 | 186,241 | 320,326 | 380,058
Federal and state income taxes | 39,247 | 45,462 | 78,966 | 92,610
Net income | 119,563 | 140,779 | 241,360 | 287,448
Net income attributable to non-controlling interests | 0 | 0 | 0 | 0
Net income attributable to BOK Financial Corp. shareholders | 119,563 | 140,779 | 241,360 | 287,448
Average assets | 30,305,613 | 28,170,869 | 30,056,215 | 28,166,923
Operating Segments [Member] | Consumer [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net interest income from external sources | 6,192 | 17,828 | 13,542 | 38,974
Net interest income (expense) from internal sources | 58,972 | 50,260 | 115,757 | 96,324
Net interest income | 65,164 | 68,088 | 129,299 | 135,298
Net loans charged off and provisions for credit losses | 1,247 | 1,129 | 3,055 | 2,313
Net interest income after provision for credit losses | 63,917 | 66,959 | 126,244 | 132,985
Other operating revenue | 36,252 | 32,277 | 72,459 | 62,887
Other operating expense | 55,128 | 52,340 | 108,575 | 102,538
Net direct contribution | 45,041 | 46,896 | 90,128 | 93,334
Gain (loss) on financial instruments, net | (3,577) | (10,257) | (13,240) | (14,930)
Change in fair value of mortgage servicing rights | 3,453 | 9,261 | 14,430 | 3,202
Gain (loss) on repossessed assets, net | 9 | 0 | 116 | 14
Corporate expense allocations | 13,392 | 12,318 | 27,564 | 23,940
Net income before taxes | 31,534 | 33,582 | 63,870 | 57,680
Federal and state income taxes | 7,417 | 7,898 | 15,022 | 13,566
Net income | 24,117 | 25,684 | 48,848 | 44,114
Net income attributable to non-controlling interests | 0 | 0 | 0 | 0
Net income attributable to BOK Financial Corp. shareholders | 24,117 | 25,684 | 48,848 | 44,114
Average assets | 9,630,470 | 9,597,723 | 9,511,225 | 9,765,186
Operating Segments [Member] | Wealth Management [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net interest income from external sources | 2,612 | 4,415 | 9,611 | 25,355
Net interest income (expense) from internal sources | 26,889 | 29,426 | 48,288 | 44,087
Net interest income | 29,501 | 33,841 | 57,899 | 69,442
Net loans charged off and provisions for credit losses | 0 | (45) | (15) | (69)
Net interest income after provision for credit losses | 29,501 | 33,886 | 57,914 | 69,511
Other operating revenue | 113,208 | 123,043 | 231,912 | 231,954
Other operating expense | 90,214 | 84,587 | 189,502 | 166,342
Net direct contribution | 52,495 | 72,342 | 100,324 | 135,123
Gain (loss) on financial instruments, net | 0 | 0 | 0 | 0
Change in fair value of mortgage servicing rights | 0 | 0 | 0 | 0
Gain (loss) on repossessed assets, net | 0 | 0 | 0 | 0
Corporate expense allocations | 16,484 | 12,784 | 31,263 | 25,310
Net income before taxes | 36,011 | 59,558 | 69,061 | 109,813
Federal and state income taxes | 8,514 | 14,056 | 16,336 | 25,927
Net income | 27,497 | 45,502 | 52,725 | 83,886
Net income attributable to non-controlling interests | 0 | 0 | 0 | 0
Net income attributable to BOK Financial Corp. shareholders | 27,497 | 45,502 | 52,725 | 83,886
Average assets | 16,452,098 | 12,949,258 | 16,105,713 | 12,309,730
Funds Management and Other [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net interest income from external sources | 3,889 | 306 | 356 | 22,310
Net interest income (expense) from internal sources | (6,268) | (1,711) | (5,691) | (1,277)
Net interest income | (2,379) | (1,405) | (5,335) | 21,033
Net loans charged off and provisions for credit losses | 619 | 9,916 | 2,666 | 24,680
Net interest income after provision for credit losses | (2,998) | (11,321) | (8,001) | (3,647)
Other operating revenue | 55,708 | (15,099) | 12,492 | (33,600)
Other operating expense | 115,234 | 104,187 | 232,788 | 204,912
Net direct contribution | (62,524) | (130,607) | (228,297) | (242,159)
Gain (loss) on financial instruments, net | 3,409 | 10,026 | 12,905 | 14,757
Change in fair value of mortgage servicing rights | (3,453) | (9,261) | (14,430) | (3,202)
Gain (loss) on repossessed assets, net | (9) | (408) | (116) | (1,281)
Corporate expense allocations | (47,257) | (46,506) | (94,605) | (88,372)
Net income before taxes | (15,320) | (83,744) | (135,333) | (143,513)
Federal and state income taxes | (7,875) | (23,415) | (39,826) | (42,197)
Net income | (7,445) | (60,329) | (95,507) | (101,316)
Net income attributable to non-controlling interests | 19 | 328 | 10 | 456
Net income attributable to BOK Financial Corp. shareholders | (7,464) | (60,657) | (95,517) | (101,772)
Average assets | $ (5,192,982) | $ (2,809,743) | $ (5,061,768) | $ (3,291,232)

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