Condensed Consolidated Statements of Financial Condition (unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
ASSETS
Cash and cash equivalents	$ 671,288	$ 555,503
Cash and securities segregated, at fair value (cost: $520,133 and $476,275)	520,139	476,277
Receivables, net:
Brokers and dealers	413,009	378,467
Brokerage clients	1,325,185	1,243,667
Fees	273,073	292,901
Investments:
Long-term incentive compensation-related	80,546	98,779
Other	648,205	664,696
Furniture, equipment and leasehold improvements, net	158,041	160,956
Goodwill	3,044,807	3,044,807
Intangible assets, net	165,310	171,407
Deferred sales commissions, net	121,882	118,290
Other assets	190,000	172,703
Total assets	7,611,485	7,378,453
Payables:
Brokers and dealers	330,332	302,484
Securities sold not yet purchased	66,904	88,902
Brokerage clients	1,683,433	1,501,227
AB mutual funds	109,264	141,132
Accounts payable and accrued expenses	469,896	432,355
Accrued compensation and benefits	363,928	291,000
Debt	500,582	488,988
Total liabilities	3,524,339	3,246,088
Commitments and contingencies (See Note 12)
Redeemable non-controlling interest	16,504	16,504
Capital:
General Partner	40,932	41,381
Limited partners: 272,607,593 and 273,040,452 units issued and outstanding	4,132,523	4,176,637
Receivables from affiliates	(10,051)	(16,359)
AB Holding Units held for long-term incentive compensation plans	(33,001)	(36,351)
Accumulated other comprehensive loss	(91,568)	(79,843)
Partners' capital attributable to AB Unitholders	4,038,835	4,085,465
Non-controlling interests in consolidated entities	31,807	30,396
Total capital	4,070,642	4,115,861
Total liabilities, redeemable non-controlling interest and capital	$ 7,611,485	$ 7,378,453