CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Cash flows from operating activities
Net income	$ 36,010	$ 4,896
Non-cash items included in net income:
Depreciation and amortization of furniture, equipment and leasehold improvements	5,378	3,897
Deferred income taxes	3,507	2,485
Amortization of intangible assets	153	0
Amortization of notes receivable	8,894	7,570
Amortization of debt issuance costs	109	110
Write-off of debt issuance costs	0	5
Provision for credit losses	(125)	(1)
Share-based compensation	14,435	7,773
Amortization of right-of-use lease assets	12,940	13,945
Gain on repurchase of senior secured notes	0	(51)
Decrease (increase) in operating assets:
Deposits with clearing organizations	(29,709)	1,397
Receivable from brokers, dealers and clearing organizations	(12,335)	(128,143)
Receivable from customers	(101,668)	136,326
Income tax receivable	1,190	(17,196)
Securities purchased under agreements to resell	1,763	0
Securities owned	(247,944)	(425,589)
Notes receivable	(9,596)	(10,948)
Corporate-owned life insurance	(5,657)	(8,466)
Other assets	(1,353)	351
Increase (decrease) in operating liabilities:
Drafts payable	12,760	21,734
Payable to brokers, dealers and clearing organizations	(83,664)	(128,603)
Payable to customers	(43,401)	(55,307)
Securities sold under agreements to repurchase	182,403	484,306
Securities sold but not yet purchased	145,575	18,333
Accrued compensation	(54,706)	(50,792)
Income tax payable	0	(4,130)
Accounts payable and other liabilities	(29,273)	(24,713)
Cash used in operating activities	(194,314)	(150,811)
Cash flows from investing activities
Purchase of furniture, equipment and leasehold improvements	(1,667)	(9,734)
Proceeds from the settlement of Company-owned life insurance	252	555
Cash used in investing activities	(1,415)	(9,179)
Cash flows from financing activities
Cash dividends paid on Class A non-voting and Class B voting common stock	(3,125)	(3,325)
Repurchase of Class A non-voting common stock for cancellation	(9,309)	(7,285)
Payments for employee taxes withheld related to vested share-based awards	(6,758)	(5,907)
Addition to noncontrolling interests	0	171
Redemption of redeemable noncontrolling interests	500
Redemption of redeemable noncontrolling interests		(83)
Repurchase of senior secured notes	0	(1,000)
Increase in bank call loans	218,800	94,400
Cash provided by financing activities	200,108	76,971
Net increase (decrease) in cash, cash equivalents and restricted cash	4,379	(83,019)
Cash, cash equivalents and restricted cash, beginning of period	28,835	137,967
Cash, cash equivalents and restricted cash, end of period	33,214	54,948
Reconciliation of cash and cash equivalents and restricted cash within the condensed consolidated balance sheets:
Cash and cash equivalents	33,214	29,145
Restricted cash	0	25,803
Total cash and cash equivalents and restricted cash	33,214	54,948
Schedule of non-cash financing activities
Employee share plan issuance	13,539	9,062
Supplemental disclosure of cash flow information
Cash paid during the period for interest	41,870	30,113
Cash paid during the period for income taxes, net	$ 12,539	$ 20,322