Consolidated Statements of Financial Condition - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
ASSETS
Cash and cash equivalents	$ 430,746	$ 506,735
Cash segregated under federal regulations	50,947	50,159
Investments, at fair value	83,792	36,078
Accounts receivable, net of allowance of $590 and $140 as of December 31, 2022 and 2021 ,respectively	78,450	63,881
Receivables from broker-dealers, clearing organizations and customers	476,335	408,346
Goodwill	154,789	154,789
Intangible assets, net of accumulated amortization	98,065	116,377
Furniture, equipment, leasehold improvements and capitalized software, net of accumulated depreciation and amortization	100,256	96,061
Operating lease right-of-use assets	66,106	70,960
Prepaid expenses and other assets	68,289	27,066
Total assets	1,607,775	1,530,452
Liabilities
Accrued employee compensation	56,302	59,719
Payables to broker-dealers, clearing organizations and customers	303,993	229,325
Income and other tax liabilities	28,448	40,456
Accounts payable, accrued expenses and other liabilities	55,263	71,218
Operating lease liabilities	82,676	88,425
Total liabilities	526,682	489,143
Commitments and Contingencies (Note 15)
Stockholders' equity
Preferred stock	0	0
Common stock	123	123
Additional paid-in capital	345,468	330,262
Treasury stock - Common stock voting, at cost, 3,270,512 shares and 2,992,550 shares as of December 31, 2022 and 2021, respectively	(328,326)	(232,712)
Retained earnings	1,101,525	956,966
Accumulated other comprehensive loss	(37,697)	(13,330)
Total stockholders' equity	1,081,093	1,041,309
Total liabilities and stockholders' equity	1,607,775	1,530,452
Series A Preferred Stock [Member]
Stockholders' equity
Preferred stock	$ 0	$ 0