Condensed Statements of Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Equity in net income attributable to AB Unitholders	$ 76,382	$ 94,353
Income taxes	8,945	8,425
Net income	$ 67,437	$ 85,928
Net income per unit:
Basic (in dollars per share)	$ 0.59	$ 0.87
Diluted (in dollars per share)	$ 0.59	$ 0.87