v3.26.1
Consolidated Statements of Earnings (Unaudited) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Interest revenue [Abstract]        
Loans $ 411,158 $ 402,188 $ 808,331 $ 798,604
Residential mortgage loans held for sale 1,452 1,346 2,508 2,321
Trading securities 70,449 86,364 134,911 160,103
Investment securities 5,749 6,738 11,875 13,721
Available-for-sale securities 135,628 131,301 269,533 258,810
Fair value option securities 849 1,319 2,238 1,497
Restricted equity securities 8,838 7,545 15,519 14,086
Interest-bearing cash and cash equivalents 5,011 5,626 10,144 11,855
Total interest and dividend revenue 639,134 642,427 1,255,059 1,260,997
Interest expense, Operating [Abstract]        
Deposits 210,109 238,443 419,307 479,515
Borrowed funds 70,998 74,230 129,080 133,393
Subordinated debentures 6,197 1,588 12,288 3,672
Total interest expense 287,304 314,261 560,675 616,580
Net interest and dividend income 351,830 328,166 694,384 644,417
Provision for credit losses 0 0 0 0
Net interest and dividend income after provision for credit losses 351,830 328,166 694,384 644,417
Total fees and commissions revenue 201,992 197,330 411,769 381,446
Other gains, net 42,415 8,140 42,199 7,415
Gain (loss) on derivatives, net (8,490) 5,535 (12,864) 15,100
Gain (loss) on fair value option securities, net 0 1,112 (2,074) 1,437
Change in fair value of mortgage servicing rights 6,300 (5,019) 14,455 (12,259)
Loss on available-for-sale securities, net (4,645) 0 (4,645) 0
Total other operating revenue 237,572 207,098 448,840 393,139
Noninterest Expense [Abstract]        
Personnel 214,094 214,711 425,268 428,896
Business promotion 11,152 9,139 20,378 17,957
Professional fees and services 13,799 15,402 28,094 28,671
Net occupancy and equipment 34,151 32,657 67,333 65,649
FDIC and other insurance 6,183 6,439 11,868 13,026
FDIC special assessment 0 (523) 0 0
Data processing and communications 51,707 49,597 103,475 97,175
Printing, postage, and supplies 3,745 4,067 7,424 7,706
Amortization of intangible assets 2,390 2,656 4,833 5,308
Mortgage banking costs 11,879 6,711 23,636 14,400
Other expense 12,579 13,647 23,536 23,244
Total other operating expense 361,679 354,503 715,845 702,032
Net income before taxes 227,723 180,761 427,379 335,524
Federal and state income taxes 51,141 40,691 95,077 75,683
Net income 176,582 140,070 332,302 259,841
Net income (loss) attributable to non-controlling interests 43 52 (3) 46
Net income attributable to BOK Financial Corporation shareholders $ 176,539 $ 140,018 $ 332,305 $ 259,795
Earnings Per Share [Abstract]        
Earnings Per Share, Basic $ 2.92 $ 2.19 $ 5.49 $ 4.05
Earnings Per Share, Diluted $ 2.92 $ 2.19 $ 5.49 $ 4.05
Average shares used in computation: [Abstract]        
Basic (in shares) 60,080,833 63,208,027 60,057,189 63,376,857
Diluted (in shares) 60,080,833 63,208,027 60,057,189 63,376,857
Dividends declared per share $ 0.63 $ 0.57 $ 1.26 $ 1.14
Brokerage and trading revenue [Member]        
Total fees and commissions revenue $ 32,450 $ 38,125 $ 76,056 $ 69,193
Transaction card revenue [Member]        
Total fees and commissions revenue 31,597 29,561 63,562 56,653
Fiduciary and asset management revenue [Member]        
Total fees and commissions revenue 71,007 63,964 137,488 124,936
Deposit service charges and fees [Member]        
Total fees and commissions revenue 33,326 31,319 65,544 61,594
Mortgage banking revenue [Member]        
Total fees and commissions revenue 18,985 18,993 39,948 38,808
Other revenue [Member]        
Total fees and commissions revenue $ 14,627 $ 15,368 $ 29,171 $ 30,262