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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2024
Income Tax Disclosure [Abstract] |
Difference Between AB Holding's Effective Tax Rates and the UBT Statutory Tax Rate | The principal reasons for the difference between AB Holding’s effective tax rates and the UBT statutory tax rate of 4.0% are as follows:
| Years Ended December 31
| 2024 | 2023 | 2022
| (in thousands)
UBT statutory rate |  | $ | 18,478 |  |  | 4.0 | % |  | $ | 11,991 |  |  | 4.0 | % |  | $ | 12,220 |  |  | 4.0 | %
Federal tax on partnership gross business income |  | 37,622 |  |  | 8.1 |  |  | 34,765 |  |  | 11.6 |  |  | 30,676 |  |  | 10.0 |
State income taxes |  | 953 |  |  | 0.3 |  |  | 832 |  |  | 0.3 |  |  | 663 |  |  | 0.2 |
Credit for UBT paid by AB |  | (18,478) |  |  | (4.0) |  |  | (11,991) |  |  | (4.0) |  |  | (12,220) |  |  | (4.0) |
Income tax expense and effective tax rate |  | $ | 38,575 |  |  | 8.4 | % |  | $ | 35,597 |  |  | 11.9 | % |  | $ | 31,339 |  |  | 10.3 | %
Computation of Effective Income Tax Rate and Changes in Components of Income Tax | AB Holding Units in AB’s consolidated rabbi trust are not considered outstanding for purposes of calculating AB Holding’s ownership interest in AB.
| Years Ended December 31 |  | % Change
| 2024 | 2023 | 2022 |  | 2024-23 | 2023-22
| (in thousands) |  |  |
Net income attributable to AB Unitholders |  | $ | 1,173,247 |  |  | $ | 764,610 |  |  | $ | 831,813 |  |  | 53.4 | % | (8.1 | %)
Multiplied by: weighted average equity ownership interest |  | 39.4 | % |  | 39.2 | % |  | 36.7 | % |  |  |
Equity in net income attributable to AB Unitholders |  | $ | 461,949 |  |  | $ | 299,781 |  |  | $ | 305,504 |  |  | 54.1 | % | (1.9 | %)
AB qualifying revenues |  | $ | 2,964,983 |  |  | $ | 2,790,628 |  |  | $ | 2,775,693 |  |  | 6.2 |  | (0.5) |
Multiplied by: weighted average equity ownership interest for calculating tax |  | 36.3 | % |  | 35.6 | % |  | 31.6 | % |  |  |
Multiplied by: federal tax |  | 3.5 | % |  | 3.5 | % |  | 3.5 | % |  |  |
Federal income taxes |  | 37,622 |  |  | 34,765 |  |  | 30,676 |  |  |  |
State income taxes |  | 953 |  |  | 832 |  |  | 663 |  |  |  |
Total income taxes |  | $ | 38,575 |  |  | $ | 35,597 |  |  | $ | 31,339 |  |  | 8.4 | % | 13.6 | %

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- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-9 + Details
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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 231 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482663/740-10-55-231 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12A -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12A Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12 + Details
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