Long-term Incentive Compensation Plans (Tables)

6 Months Ended

Jun. 30, 2026

Share-Based Payment Arrangement [Abstract]

Summary of Share-based Compensation, Employee Stock Purchase Plan, Activity

Repurchases of AB Holding Units for the three and six months ended June 30, 2026 and 2025 consisted of the following:

	Three Months Ended June 30,				Six Months Ended June 30,
	2026		2025		2026		2025
	(in millions)
Total amount of AB Holding Units Purchased/Retained (1)	0.6		0.4		0.8		1.2
Total Cash Paid for AB Holding Units Purchased/Retained (1)	$	19.9	$	13.2	$	28.7	$	43.7
Open Market Purchases of AB Holding Units Purchased (1)	0.5		0.3		0.6		1.0
Total Cash Paid for Open Market Purchases of AB Holding Units (1)	$	16.9	$	12.3	$	21.6	$	38.4

(1)    Purchased on a trade date basis. The difference between open-market purchases and units retained reflects the retention of AB Holding Units from employees to fulfill statutory tax withholding requirements at the time of delivery of long-term incentive compensation awards.