Condensed Consolidated Income Statements (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
REVENUE
Commissions	$ 94,378	$ 96,171	$ 192,699	$ 209,642
Advisory fees	107,405	111,152	223,171	215,648
Investment banking	16,653	104,742	55,123	229,243
Bank deposit sweep income	14,845	3,712	19,199	7,720
Interest	11,789	8,909	21,306	17,575
Principal transactions, net	1,258	6,305	3,622	17,170
Other	(9,106)	9,302	(11,870)	16,577
Total revenue	237,222	340,293	503,250	713,575
EXPENSES
Compensation and related expenses	177,979	231,140	364,010	486,741
Communications and technology	20,896	19,172	42,481	39,779
Occupancy and equipment costs	14,554	15,225	29,244	30,407
Clearing and exchange fees	6,242	5,155	12,218	11,430
Interest	3,628	2,448	6,140	5,095
Other	20,092	23,985	41,113	44,828
Total expenses	243,391	297,125	495,206	618,280
Pre-tax income (loss)	(6,169)	43,168	8,044	95,295
Income taxes provision (benefit)	(1,449)	12,009	2,986	25,478
Net income (loss)	(4,720)	31,159	5,058	69,817
Net income (loss) attributable to noncontrolling interest, net of tax	(846)	0	(360)	0
Net income (loss) attributable to Oppenheimer Holdings Inc.	$ (3,874)	$ 31,159	$ 5,418	$ 69,817
Earnings (Loss) per share attributable to Oppenheimer Holdings Inc.
Basic (in dollars per share)	$ (0.32)	$ 2.46	$ 0.44	$ 5.53
Diluted (in dollars per share)	$ (0.32)	$ 2.28	$ 0.41	$ 5.17
Weighted average shares outstanding
Basic (in shares)	11,980,115	12,689,191	12,222,527	12,634,464
Diluted (in shares)	11,980,115	13,681,146	13,141,538	13,495,589
Shares, Outstanding	11,370,609	12,692,311	11,370,609	12,692,311