Income Taxes (Tables)

9 Months Ended

Sep. 30, 2023

Income Tax Disclosure [Abstract]

Computation of Effective Income Tax Rate and Changes in Components of Income Tax

	Three Months Ended September 30,								Nine Months Ended September 30,
	2023			2022			% Change		2023			2022			% Change
									(in thousands)
Net income attributable to AB Unitholders	$	167,404		$	175,180		(4.4)	%	$	537,292		$	644,676		(16.7)	%
Multiplied by: weighted average equity ownership interest	39.3		%	36.5		%			39.3		%	36.2		%
Equity in net income attributable to AB Unitholders	$	65,761		$	63,905		2.9		$	211,264		$	233,616		(9.6)
AB qualifying revenues	$	689,323		$	678,682		1.6		$	2,059,866		$	2,089,206		(1.4)
Multiplied by: weighted average equity ownership interest for calculating tax	35.6		%	31.3		%			35.7		%	31.1		%
Multiplied by: federal tax	3.5		%	3.5		%			3.5		%	3.5		%
Federal income taxes	8,593			7,442					25,713			22,748
State income taxes	177			147					565			483
Total income taxes	$	8,770		$	7,589		15.6		$	26,278		$	23,231		13.1
Effective tax rate	13.3		%	11.9		%			12.4		%	9.9		%