Condensed Consolidated Statements of Financial Condition - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
ASSETS
Cash and cash equivalents	$ 754,455	$ 640,206
Cash and securities segregated, at fair value (cost: $1,253,200 and $1,164,375)	1,262,178	1,169,554
Receivables, net:
Brokers and dealers	207,437	197,048
Brokerage clients	1,617,628	1,718,629
AB funds fees	216,239	217,470
Other fees	122,065	127,462
Investments:
Long-term incentive compensation-related	49,717	52,429
Other	225,476	661,915
Other assets	257,718	297,940
Furniture, equipment and leasehold improvements, net	149,847	155,519
Goodwill	3,066,700	3,066,700
Intangible assets, net	72,014	79,424
Deferred sales commissions, net	16,821	17,148
Right-of-use assets	421,277
Total assets	8,858,838	8,789,098
Payables:
Brokers and dealers	187,233	290,960
Securities sold not yet purchased	5,343	8,623
Brokerage clients	3,000,596	3,095,458
AB mutual funds	57,057	74,599
Accounts payable and accrued expenses	181,377	412,313
Lease liabilities	541,170
Accrued compensation and benefits	313,526	273,250
Debt	540,258	546,267
Liabilities	4,856,208	4,724,080
Commitments and contingencies (See Note 12)
Redeemable non-controlling interest	158,873	148,809
Capital:
General Partner	39,403	40,240
Limited partners: 267,186,102 and 268,850,276 units issued and outstanding	3,992,590	4,075,306
Receivables from affiliates	(11,666)	(11,430)
AB Holding Units held for long-term incentive compensation plans	(69,503)	(77,990)
Accumulated other comprehensive loss	(108,012)	(110,866)
Partners’ capital attributable to AB Unitholders	3,842,812	3,915,260
Non-redeemable non-controlling interests in consolidated entities	945	949
Total capital	3,843,757	3,916,209
Total liabilities, redeemable non-controlling interest and capital	8,858,838	8,789,098
Company-sponsored investment funds
Investments:
Cash and cash equivalents	7,767	13,118
Investments	385,309	351,696
Other assets	26,190	22,840
Payables:
Liabilities	29,648	22,610
Redeemable non-controlling interest	155,985	145,921
Capital:
Non-redeemable non-controlling interests in consolidated entities	$ 0	$ 0