Income Taxes (Tables)

6 Months Ended

Jun. 30, 2023

Income Tax Disclosure [Abstract]

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

	Three Months Ended June 30,								Six Months Ended June 30,
	2023			2022			% Change		2023			2022			% Change
									(in thousands)
Net income attributable to AB Unitholders	$	175,737		$	208,769		(15.8)	%	$	369,888		$	469,496		(21.2)	%
Multiplied by: weighted average equity ownership interest	39.3		%	36.1		%			39.3		%	36.1		%
Equity in net income attributable to AB Unitholders	$	69,121		$	75,358		(8.3)		$	145,503		$	169,711		(14.3)
AB qualifying revenues	$	670,328		$	665,807		0.7		$	1,370,543		$	1,410,524		(2.8)
Multiplied by: weighted average equity ownership interest for calculating tax	35.7		%	30.6		%			35.7		%	31.0		%
Multiplied by: federal tax	3.5		%	3.5		%			3.5		%	3.5		%
Federal income taxes	8,371			7,120					17,120			15,306
State income taxes	192			97					388			336
Total income taxes	$	8,563		$	7,217		18.7		$	17,508		$	15,642		11.9
Effective tax rate	12.4		%	9.6		%			12.0		%	9.2		%