Condensed Consolidated Statements of Financial Condition - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
ASSETS
Cash and cash equivalents	$ 710,335	$ 640,206
Cash and securities segregated, at fair value (cost: $1,099,679 and $1,164,375)	1,109,589	1,169,554
Receivables, net:
Brokers and dealers	172,457	197,048
Brokerage clients	1,715,075	1,718,629
AB funds fees	191,216	217,470
Other fees	133,006	127,462
Investments:
Long-term incentive compensation-related	48,906	52,429
Other	175,797	661,915
Other assets	311,836	297,940
Furniture, equipment and leasehold improvements, net	146,616	155,519
Goodwill	3,076,926	3,066,700
Intangible assets, net	72,848	79,424
Deferred sales commissions, net	20,714	17,148
Right-of-use assets	398,966
Total assets	8,794,006	8,789,098
Payables:
Brokers and dealers	263,603	290,960
Securities sold not yet purchased	5,404	8,623
Brokerage clients	2,686,086	3,095,458
AB mutual funds	72,058	74,599
Accounts payable and accrued expenses	229,606	412,313
Lease liabilities	515,664
Liabilities	4,704,231	4,724,080
Accrued compensation and benefits	453,802	273,250
Debt	442,425	546,267
Commitments and contingencies (See Note 12)
Redeemable non-controlling interest	215,634	148,809
Capital:
General Partner	40,016	40,240
Limited partners: 268,815,565 and 268,850,276 units issued and outstanding	4,053,360	4,075,306
Receivables from affiliates	(9,839)	(11,430)
AB Holding Units held for long-term incentive compensation plans	(100,453)	(77,990)
Accumulated other comprehensive loss	(109,963)	(110,866)
Partners’ capital attributable to AB Unitholders	3,873,121	3,915,260
Non-redeemable non-controlling interests in consolidated entities	1,020	949
Total capital	3,874,141	3,916,209
Total liabilities, redeemable non-controlling interest and capital	8,794,006	8,789,098
Company-sponsored investment funds
Investments:
Cash and cash equivalents	10,665	13,118
Investments	470,435	351,696
Other assets	28,619	22,840
Payables:
Liabilities	35,583	22,610
Redeemable non-controlling interest	212,746	145,921
Capital:
Non-redeemable non-controlling interests in consolidated entities	$ 0	$ 0