Net Income Per Unit (Tables)

12 Months Ended

Dec. 31, 2023

Earnings Per Share [Abstract]

Net Income Per Unit

	Years Ended December 31
	2023			2022			2021
	(in thousands, except per unit amounts)
Net income - basic		$	264,184		$	274,165		$	385,843
Additional allocation of equity in net income attributable to AB resulting from assumed dilutive effect of compensatory options		—			2			30
Net income - diluted		$	264,184		$	274,167		$	385,873
Weighted average units outstanding - basic		112,948			101,763			99,545
Dilutive effect of compensatory options		—			1			11
Weighted average units outstanding - diluted		112,948			101,764			99,556
Basic net income per unit		$	2.34		$	2.69		$	3.88
Diluted net income per unit		$	2.34		$	2.69		$	3.88