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Earnings Per Share (Tables) | 9 Months Ended
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Sep. 30, 2021
Earnings Per Share [Abstract] |
Earnings Per Share [Table Text Block] |
(In thousands, except share and per share amounts) |  | Three Months Ended September 30, |  | Nine Months Ended September 30,
|  | 2021 |  | 2020 |  | 2021 |  | 2020
Numerator: |  |  |  |  |  |  |  |
Net income attributable to BOK Financial Corp. shareholders |  | $ | 188,322 |  |  | $ | 154,034 |  |  | $ | 500,803 |  |  | $ | 280,806 |
Less: Earnings allocated to participating securities |  | 1,351 |  |  | 938 |  |  | 3,458 |  |  | 1,678 |
Numerator for basic earnings per share – income available to common shareholders |  | 186,971 |  |  | 153,096 |  |  | 497,345 |  |  | 279,128 |
Effect of reallocating undistributed earnings of participating securities |  | — |  |  | — |  |  | — |  |  | — |
Numerator for diluted earnings per share – income available to common shareholders |  | $ | 186,971 |  |  | $ | 153,096 |  |  | $ | 497,345 |  |  | $ | 279,128 |
Denominator: |  |  |  |  |  |  |  |
Weighted average shares outstanding |  | 68,852,688 |  |  | 70,306,233 |  |  | 69,243,562 |  |  | 70,375,628 |
Less: Participating securities included in weighted average shares outstanding |  | 493,563 |  |  | 428,367 |  |  | 475,518 |  |  | 416,684 |
Denominator for basic earnings per common share |  | 68,359,125 |  |  | 69,877,866 |  |  | 68,768,044 |  |  | 69,958,944 |
Dilutive effect of employee stock compensation plans 1 |  | 1,746 |  |  | 1,424 |  |  | 2,619 |  |  | 3,109 |
Denominator for diluted earnings per common share |  | 68,360,871 |  |  | 69,879,290 |  |  | 68,770,663 |  |  | 69,962,053 |
Basic earnings per share |  | $ | 2.74 |  |  | $ | 2.19 |  |  | $ | 7.23 |  |  | $ | 3.99 |
Diluted earnings per share |  | $ | 2.74 |  |  | $ | 2.19 |  |  | $ | 7.23 |  |  | $ | 3.99 |
1 Excludes employee stock options with exercise prices greater than current market price. |  | — |  |  | 19,227 |  |  | — |  |  | — |

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- References No definition available. + Details
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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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