Condensed Statements of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Income Statement [Abstract]
Equity in net income attributable to AB Unitholders	$ 69,121	$ 75,358	$ 145,503	$ 169,711
Income taxes	8,563	7,217	17,508	15,642
Net income	$ 60,558	$ 68,141	$ 127,995	$ 154,069
Net income per unit:
Basic (in dollars per share)	$ 0.53	$ 0.69	$ 1.13	$ 1.56
Diluted (in dollars per share)	$ 0.53	$ 0.69	$ 1.13	$ 1.56