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Net Income Per Unit
 12 Months Ended
Dec. 31, 2023
Earnings Per Share [Abstract]  
Net Income Per Unit Net Income Per Unit
Basic net income per unit is derived by reducing net income for the 1.0% general partnership interest and dividing the remaining 99.0% by the basic weighted average number of limited partnership units outstanding for each year. Diluted net income per unit is derived by reducing net income for the 1.0% general partnership interest and dividing the remaining 99.0% by the total of the diluted weighted average number of limited partnership units outstanding for each year.
Years Ended December 31
202320222021
(in thousands, except per unit amounts)
Net income attributable to AB Unitholders$764,610 $831,813 $1,148,623 
Weighted average units outstanding—basic285,125 273,943 271,729 
Dilutive effect of compensatory options to buy AB Holding Units— 1 11 
Weighted average units outstanding—diluted285,125 273,944 271,740 
Basic net income per AB Unit$2.65 $3.01 $4.18 
Diluted net income per AB Unit$2.65 $3.01 $4.18