Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2019

Earnings Per Share [Abstract]

Earnings Per Share [Table Text Block]

(In thousands, except share and per share amounts)	Three Months Ended March 31,
	2019		2018
Numerator:
Net income attributable to BOK Financial Corp. shareholders	$	110,612	$	105,562
Less: Earnings allocated to participating securities	828		1,022
Numerator for basic earnings per share – income available to common shareholders	109,784		104,540
Effect of reallocating undistributed earnings of participating securities	—		—
Numerator for diluted earnings per share – income available to common shareholders	$	109,784	$	104,540
Denominator:
Weighted average shares outstanding	$	71,926,041	$	65,479,482
Less:  Participating securities included in weighted average shares outstanding	538,971		632,148
Denominator for basic earnings per common share	71,387,070		64,847,334
Dilutive effect of employee stock compensation plans1	17,318		40,699
Denominator for diluted earnings per common share	$	71,404,388	$	64,888,033
Basic earnings per share	$	1.54	$	1.61
Diluted earnings per share	$	1.54	$	1.61
1  Excludes employee stock options with exercise prices greater than current market price.	—		—