Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenues:
Dividend and interest income	$ 123,091	$ 38,734	$ 50,923
Investment (losses)	(102,413)	(636)	(16,401)
Other revenues	105,544	108,409	104,703
Total revenues	4,120,728	4,445,288	3,724,186
Less: Interest expense	66,438	3,686	15,650
Net revenues	4,054,290	4,441,602	3,708,536
Expenses:
Employee compensation and benefits	1,666,636	1,716,013	1,494,198
Promotion and servicing:
Amortization of deferred sales commissions	34,762	34,364	27,355
Trade execution, marketing, T&E and other	215,556	197,486	189,787
General and administrative	641,635	555,608	491,070
Contingent payment arrangements	6,563	2,710	1,855
Interest on borrowings	17,906	5,145	6,180
Amortization of intangible assets	26,564	5,697	21,372
Total expenses	3,239,194	3,225,140	2,801,100
Operating income	815,096	1,216,462	907,436
Income tax	39,639	62,728	45,653
Net income	775,457	1,153,734	861,783
Net (loss) income of consolidated entities attributable to non-controlling interests	(56,356)	5,111	(4,169)
Net income attributable to AB Unitholders	$ 831,813	$ 1,148,623	$ 865,952
Net income per AB Unit:
Basic (in dollars per share)	$ 3.01	$ 4.18	$ 3.19
Diluted (in dollars per share)	$ 3.01	$ 4.18	$ 3.19
Investment advisory and services fees
Revenues:
Revenue subject to contracts with customers	$ 2,971,038	$ 3,194,524	$ 2,595,436
Bernstein research services
Revenues:
Revenue subject to contracts with customers	416,273	452,017	459,744
Distribution related
Revenues:
Revenue subject to contracts with customers	607,195	652,240	529,781
Promotion and servicing:
Distribution-related payments	$ 629,572	$ 708,117	$ 569,283