Consolidated Statements of Financial Condition - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
ASSETS
Cash and cash equivalents	$ 544,478	$ 451,280
Cash segregated under federal regulations	47,107	45,122
Investments, at fair value	165,260	134,861
Accounts receivable, net of allowance of $982 and $577 as of December 31, 2024 and 2023, respectively	91,845	89,839
Receivables from broker-dealers, clearing organizations and customers	357,728	687,936
Goodwill	236,706	236,706
Intangible assets, net of accumulated amortization	98,078	119,108
Furniture, equipment, leasehold improvements and capitalized software, net of accumulated depreciation and amortization	107,298	102,671
Operating lease right-of-use assets	58,132	63,045
Prepaid expenses and other assets	82,584	84,499
Total assets	1,789,216	2,015,067
Liabilities
Accrued employee compensation	68,054	60,124
Payables to broker-dealers, clearing organizations and customers	218,845	537,398
Income and other tax liabilities	3,683	7,892
Accounts payable, accrued expenses and other liabilities	37,320	37,013
Operating lease liabilities	72,654	79,677
Total liabilities	400,556	722,104
Commitments and Contingencies (Note 13)
Stockholders' equity
Preferred stock	0	0
Common stock	123	123
Additional paid-in capital	350,701	333,292
Treasury stock - Common stock voting, at cost, 3,374,047 shares and 3,041,081 shares as of December 31, 2024 and 2023, respectively	(333,369)	(260,298)
Retained earnings	1,405,904	1,244,216
Accumulated other comprehensive loss	(34,699)	(24,370)
Total stockholders' equity	1,388,660	1,292,963
Total liabilities and stockholders' equity	1,789,216	2,015,067
Series A Preferred Stock [Member]
Stockholders' equity
Preferred stock	$ 0	$ 0