Consolidated Statements of Financial Condition - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
ASSETS
Cash and cash equivalents	$ 1,037,400	$ 679,738
Cash and securities segregated, at fair value (cost $1,752,483 and $1,090,443)	1,753,478	1,094,866
Receivables, net:
Brokers and dealers	92,638	97,966
Brokerage clients	1,713,377	1,536,674
AB funds fees	325,407	261,588
Other fees	148,746	148,744
Investments:
Long-term incentive compensation-related	60,114	50,902
Other	193,261	215,892
Other assets	264,418	330,943
Furniture, equipment and leasehold improvements, net	147,874	145,251
Goodwill	3,082,778	3,076,926
Intangible assets, net	44,496	55,366
Deferred sales commissions, net	64,066	36,296
Right-of-use assets	418,455	362,693
Total assets	9,697,840	8,706,092
Payables:
Brokers and dealers	216,403	201,778
Securities sold not yet purchased	17,791	30,157
Brokerage clients	3,440,266	2,531,946
AB mutual funds	65,550	71,142
Accounts payable and accrued expenses	197,657	192,110
Lease liabilities	505,549	468,451
Accrued compensation and benefits	335,122	276,829
Debt	675,000	560,000
Total liabilities	5,483,958	4,363,430
Commitments and contingencies (See Note 14)
Redeemable non-controlling interest	102,359	325,561
Capital:
General Partner	41,776	41,225
Limited partners: 270,509,658 and 270,380,314 units issued and outstanding	4,229,485	4,174,201
Receivables from affiliates	(8,316)	(9,011)
AB Holding Units held for long-term incentive compensation plans	(57,219)	(76,310)
Accumulated other comprehensive loss	(94,203)	(113,004)
Partners’ capital attributable to AB Unitholders	4,111,523	4,017,101
Total liabilities, redeemable non-controlling interest and capital	$ 9,697,840	$ 8,706,092
Limited partners units issued (in units)	270,509,658	270,380,314
Limited partners, units outstanding (in units)	270,509,658	270,380,314
Consolidated company-sponsored investment funds
Investments:
Cash and cash equivalents	$ 36,506	$ 11,433
Investments	302,582	581,004
Other assets	12,244	19,810
Payables:
Redeemable non-controlling interest	102,359	325,561
Variable Interest Entity, Primary Beneficiary
Payables:
Liabilities of consolidated company-sponsored investment funds	$ 30,620	$ 31,017