Condensed Consolidated Statements of Financial Condition - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
ASSETS
Cash and cash equivalents	$ 1,093,097	$ 1,037,400
Cash and securities segregated, at fair value (cost: $1,072,523 and $1,752,483)	1,073,082	1,753,478
Receivables, net:
Brokers and dealers	107,851	92,638
Brokerage clients	2,011,409	1,713,377
AB funds fees	253,740	325,407
Other fees	156,157	148,746
Investments:
Long-term incentive compensation-related	61,513	60,114
Other	167,133	193,261
Assets of consolidated company-sponsored investment funds:
Other assets	338,115	264,418
Furniture, equipment and leasehold improvements, net	154,201	147,874
Goodwill	3,091,767	3,082,778
Intangible assets, net	44,981	44,496
Deferred sales commissions, net	68,414	64,066
Right-of-use assets	408,990	418,455
Total assets	9,236,134	9,697,840
Payables:
Brokers and dealers	251,725	216,403
Securities sold not yet purchased	12,709	17,791
Brokerage clients	2,912,175	3,440,266
AB mutual funds	82,826	65,550
Accounts payable and accrued expenses	228,294	197,657
Lease liabilities	485,843	505,549
Accrued compensation and benefits	601,222	335,122
Debt	590,000	675,000
Total liabilities	5,176,111	5,483,958
Commitments and contingencies (See Note 12)
Redeemable non-controlling interest	17,803	102,359
Capital:
General Partner	41,953	41,776
Limited partners: 271,994,122 and 270,509,658 units issued and outstanding	4,247,060	4,229,485
Receivables from affiliates	(7,799)	(8,316)
AB Holding Units held for long-term incentive compensation plans	(140,204)	(57,219)
Accumulated other comprehensive loss	(98,790)	(94,203)
Partners’ capital attributable to AB Unitholders	4,042,220	4,111,523
Total liabilities, redeemable non-controlling interest and capital	9,236,134	9,697,840
Company-sponsored investment funds
Assets of consolidated company-sponsored investment funds:
Cash and cash equivalents	30,456	36,506
Investments	166,940	302,582
Other assets	8,288	12,244
Total assets	205,684	351,332
Payables:
Liabilities of consolidated company-sponsored investment funds	11,317	30,620
Total liabilities	11,317	30,620
Redeemable non-controlling interest	17,803	102,359
Capital:
Partners’ capital attributable to AB Unitholders	176,564	218,353
Total liabilities, redeemable non-controlling interest and capital	$ 205,684	$ 351,332