Condensed Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Revenues:
Revenue subject to contracts with customers	$ 769,186	$ 821,803
Dividend and interest income	27,346	28,215
Investment gains (losses)	15,735	26,082
Other revenues	22,206	26,510
Total revenues	812,625	877,327
Less: Interest expense	17,163	9,540
Net revenues	795,462	867,787
Expenses:
Employee compensation and benefits	339,309	343,825
Promotion and servicing:
Distribution-related payments	105,993	110,154
Amortization of deferred sales commissions	3,502	6,598
Trade execution, marketing, T&E and other	49,648	54,043
General and administrative:
General and administrative	117,848	121,234
Real estate (credit) charges	0	(264)
Contingent payment arrangements	54	53
Interest on borrowings	3,983	2,612
Amortization of intangible assets	6,974	6,861
Total expenses	627,311	645,116
Operating income	168,151	222,671
Income taxes	8,921	15,825
Net income	159,230	206,846
Net income of consolidated entities attributable to non-controlling interests	10,116	22,650
Net income attributable to AB Unitholders	$ 149,114	$ 184,196
Net income per AB Unit:
Basic (in dollars per unit)	$ 0.55	$ 0.68
Diluted (in dollars per unit)	$ 0.55	$ 0.68
Investment advisory and services fees
Revenues:
Revenue subject to contracts with customers	$ 556,594	$ 574,116
Bernstein research services
Revenues:
Revenue subject to contracts with customers	90,235	114,400
Distribution revenues
Revenues:
Revenue subject to contracts with customers	$ 100,509	$ 108,004