CONSOLIDATED BALANCE SHEETS - USD ($)	Dec. 31, 2023	Dec. 31, 2022
ASSETS
Cash and cash equivalents	$ 28,835,000	$ 112,433,000
Deposits with clearing organizations	78,706,000	77,691,000
Restricted cash	0	25,534,000
Receivable from brokers, dealers and clearing organizations	284,696,000	206,077,000
Receivable from customers, net of allowance for credit losses of $345 ($350 in 2022)	1,059,892,000	1,202,764,000
Income tax receivable	7,199,000	0
Securities purchased under agreements to resell	5,842,000	0
Securities owned, including amounts pledged of $689,381 ($175,724 in 2022), at fair value	795,312,000	498,594,000
Notes receivable, net	62,640,000	57,495,000
Furniture, equipment and leasehold improvements, net of accumulated depreciation of $82,732 ($97,751 in 2022)	43,874,000	36,742,000
Right-of-use lease assets, net of accumulated amortization of $99,716 ($82,449 in 2022)	140,554,000	142,630,000
Intangible assets	34,340,000	32,100,000
Goodwill	142,162,000	137,889,000
Other assets	190,764,000	184,443,000
Total assets	2,874,816,000	2,714,392,000
Liabilities
Drafts payable	9,002,000	0
Payable to brokers, dealers and clearing organizations	361,890,000	550,006,000
Payable to customers	369,287,000	456,475,000
Securities sold under agreements to repurchase	640,382,000	161,009,000
Securities sold but not yet purchased, at fair value	31,676,000	52,768,000
Accrued compensation	256,244,000	239,136,000
Accounts payable and other liabilities	82,810,000	102,202,000
Income tax payable	0	4,130,000
Lease liabilities	183,273,000	182,570,000
Senior secured notes, net of debt issuance costs of $392 ($616 in 2022)	112,658,000	113,434,000
Deferred tax liabilities, net of deferred tax assets of $45,961 ($55,628 in 2022)	38,355,000	32,241,000
Total liabilities	2,085,577,000	1,893,971,000
Commitments and contingencies (Note 18)
Redeemable non-controlling interests	0	25,466,000
Stockholders' equity
Common stock	10,000	11,000
Additional paid-in capital	31,774,000	28,628,000
Retained earnings	756,468,000	764,178,000
Accumulated other comprehensive income	914,000	1,416,000
Total Oppenheimer Holdings Inc. stockholders' equity	789,166,000	794,233,000
Non-controlling interests (Note 2)	73,000	722,000
Total Stockholders' Equity	789,239,000	794,955,000
Total Liabilities, Redeemable Non-controlling Interests and Stockholders' Equity	$ 2,874,816,000	$ 2,714,392,000