CONDENSED CONSOLIDATED INCOME STATEMENTS (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
REVENUE
Commissions	$ 95,850	$ 86,697
Advisory fees	114,847	100,544
Investment banking	50,537	37,965
Bank deposit sweep income	36,685	48,909
Interest	26,766	24,941
Principal transactions, net	18,234	13,490
Other	10,219	9,133
Total revenue	353,138	321,679
EXPENSES
Compensation and related expenses	221,713	206,292
Communications and technology	24,576	22,440
Occupancy and equipment costs	15,848	15,901
Clearing and exchange fees	5,842	6,263
Interest	20,548	13,142
Other	27,156	38,592
Total expenses	315,683	302,630
Pre-tax income	37,455	19,049
Income tax provision	11,711	4,585
Net income	25,744	14,464
Net loss attributable to noncontrolling interest, net of tax	(310)	(153)
Net income attributable to Oppenheimer Holdings Inc.	$ 26,054	$ 14,617
Earnings per share attributable to Oppenheimer Holdings Inc.
Basic (in dollars per share)	$ 2.50	$ 1.32
Diluted (in dollars per share)	$ 2.37	$ 1.22
Weighted average shares outstanding
Basic (in shares)	10,407,454	11,092,603
Diluted (in shares)	11,001,669	11,963,492
Period end shares outstanding (in shares)	10,346,862	11,075,388