Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
REVENUE:
Commissions	$ 123,267	$ 120,940	$ 380,912	$ 398,719
Principal transactions, net	8,233	22,646	32,537	60,803
Interest	15,161	11,220	43,599	31,996
Investment banking	29,199	21,791	91,357	83,311
Advisory fees	50,696	43,356	149,200	130,134
Other	5,063	15,190	31,949	34,550
Total revenue	231,619	235,143	729,554	739,513
EXPENSES:
Compensation and related expenses	148,951	159,486	479,802	485,765
Clearing and exchange fees	6,514	5,525	19,127	19,910
Communications and technology	15,138	15,838	47,146	48,578
Occupancy and equipment costs	18,977	18,162	56,047	54,884
Interest	10,230	6,546	28,673	18,016
Other	27,545	22,127	82,962	75,615
Total expenses	227,355	227,684	713,757	702,768
Profit before income taxes	4,264	7,459	15,797	36,745
Income tax provision	1,805	3,210	7,139	14,871
Net profit for the period	2,459	4,249	8,658	21,874
Less net profit attributable to non-controlling interest, net of tax	353	595	1,775	1,505
Net profit attributable to Oppenheimer Holdings Inc.	$ 2,106	$ 3,654	$ 6,883	$ 20,369
Profit per share attributable to Oppenheimer Holdings Inc.:
Basic	$ 0.15	$ 0.27	$ 0.51	$ 1.53
Diluted	$ 0.15	$ 0.26	$ 0.49	$ 1.46
Weighted average common shares:
Basic	13,670,604	13,355,468	13,627,122	13,334,214
Diluted	13,915,897	13,956,711	13,922,637	13,920,725
Dividends declared per share	$ 0.11	$ 0.11	$ 0.33	$ 0.33