Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
ASSETS
Cash and cash equivalents	$ 116,582	$ 64,913
Deposits with clearing organizations	40,685	38,185
Receivable from brokers, dealers and clearing organizations	224,706	214,934
Receivable from customers, net of allowance for credit losses of $790 ($794 in 2016)	873,815	847,386
Income tax receivable	10,105	5,816
Securities purchased under agreements to resell, $3,617 at fair value	4,852	24,006
Securities owned, including amounts pledged of $644,359 ($438,385 in 2016), at fair value	986,432	707,108
Notes receivable, net of accumulated amortization and allowance for uncollectibles of $23,735 and $7,445, respectively ($24,826 and $6,784, respectively, in 2016)	36,240	30,099
Furniture, equipment and leasehold improvements, net of accumulated depreciation of $86,502 ($84,073 in 2016)	26,525	27,233
Intangible assets	31,700	31,700
Goodwill	137,889	137,889
Other assets	117,988	107,661
Total assets	2,607,519	2,236,930
Liabilities
Drafts payable	29,767	39,228
Bank call loans	230,400	145,800
Payable to brokers, dealers and clearing organizations	239,578	221,389
Payable to customers	498,562	449,946
Securities sold under agreements to repurchase	457,809	378,084
Securities sold but not yet purchased, at fair value	234,778	85,050
Accrued compensation	113,088	145,053
Accounts payable and other liabilities	89,065	96,557
Senior secured notes	198,896	149,352
Deferred tax liabilities	14,462	13,137
Total liabilities	2,106,405	1,723,596
Commitments and contingencies (Note 11)
Share capital
Common stock	58,059	59,361
Contributed capital	38,774	41,765
Retained earnings	400,844	410,258
Accumulated other comprehensive income (loss)	1,523	(681)
Total Oppenheimer Holdings Inc. stockholders' equity	499,200	510,703
Noncontrolling interest	1,914	2,631
Total stockholders' equity	501,114	513,334
Total liabilities and stockholders' equity	2,607,519	2,236,930
Class A Stock [Member]
Share capital
Common stock	57,926	59,228
Class B Stock [Member]
Share capital
Common stock	$ 133	$ 133