XML 45 R33.htm IDEA: XBRL DOCUMENT v3.24.3
Income Taxes (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Income Tax Disclosure [Abstract]        
New York City unincorporated business tax (percent)     4.00%  
Federal tax rate on partnership gross income (percent)     3.50%  
Income Tax Contingency [Line Items]        
Multiplied by: weighted average equity ownership interest (percent) 39.40% 39.30% 39.50% 39.30%
Equity in net income attributable to AB Unitholders $ 136,374 $ 65,761 $ 345,360 $ 211,264
Computation of income tax [Abstract]        
AB qualifying revenues $ 713,242 $ 689,323 $ 2,099,807 $ 2,059,866
Multiplied by: weighted average equity ownership interest for calculating tax (percent) 35.70% 35.60% 36.40% 35.70%
Multiplied by: federal tax (percent) 3.50% 3.50% 3.50% 3.50%
Federal income taxes $ 8,924 $ 8,593 $ 26,728 $ 25,713
State income taxes 255 177 692 565
Total income taxes $ 9,179 $ 8,770 $ 27,420 $ 26,278
Effective tax rate (percent) 6.70% 13.30% 7.90% 12.40%
Changes in components for calculation of income tax [Abstract]        
Change in net income attributable to AB Unitholders (percent) 106.70%   62.60%  
Change in equity in net income attributable to AB Unitholders (percent) 107.40%   63.50%  
Change in AB qualifying revenues (percent) 3.50%   1.90%  
Change in income taxes (percent) 4.70%   4.30%  
Variable Interest Entity, Primary Beneficiary        
Income Tax Contingency [Line Items]        
Net income attributable to AB Unitholders $ 345,972 $ 167,404 $ 873,471 $ 537,292