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Consolidated Statements of Comprehensive Income - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Statement of Comprehensive Income [Abstract]    
Net income $ 144,308 $ 61,984
Other Comprehensive Income (Loss), before Tax [Abstract]    
Net change in unrealized gain (loss) (150,131) 297,843
Reclassification Adjustments Included in Earnings [Abstract]    
Gain on available for sale securities, net (467) (3)
Other comprehensive income (loss) before income taxes (150,598) 297,840
Federal and state income taxes (36,139) 71,471
Other comprehensive income (loss), net of income taxes (114,459) 226,369
Comprehensive income 29,849 288,353
Comprehensive loss attributable to non-controlling interests (1,752) (95)
Comprehensive income attributable to BOK Financial Corp. shareholders $ 31,601 $ 288,448