Condensed Statements of Financial Condition (unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
ASSETS
Investment in AllianceBernstein	$ 1,615,585	$ 1,560,536
Other assets	1,291	5,957
Total assets	1,616,876	1,566,493
Liabilities:
Due to AllianceBernstein	8,158	6,053
Other liabilities	461	358
Total liabilities	8,619	6,411
Commitments and contingencies (See Note 8)
Partners' capital:
General Partner: 100,000 general partnership units issued and outstanding	1,366	1,369
Limited partners: 105,465,870 and 105,073,342 limited partnership units issued and outstanding	1,731,792	1,723,172
Holding Units held by AllianceBernstein to fund long-term incentive compensation plans	(102,981)	(146,258)
Accumulated other comprehensive income (loss)	(21,920)	(18,201)
Total partners' capital	1,608,257	1,560,082
Total liabilities and partners' capital	$ 1,616,876	$ 1,566,493