Income Taxes (Tables)

3 Months Ended

Mar. 31, 2025

Income Tax Disclosure [Abstract]

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

	Three Months Ended March 31,
	2025			2024			% Change
	(in thousands)
Net income attributable to AB Unitholders	$	220,799		$	217,927		1.3	%
Multiplied by: weighted average equity ownership interest	37.5		%	39.6		%
Equity in net income attributable to AB Unitholders	$	82,753		$	86,281		(4.1)
AB qualifying revenues	$	700,770		$	695,980		0.7
Multiplied by: weighted average equity ownership interest for calculating tax	34.6		%	36.3		%
Multiplied by: federal tax	3.5		%	3.5		%
Federal income taxes	8,486			8,836
State income taxes	233			223
Total income taxes	$	8,719		$	9,059		(3.8)	%
Effective tax rate	10.5		%	10.5		%