Consolidated Statements of Financial Condition - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
ASSETS
Cash and cash equivalents	$ 519,734	$ 544,478
Cash segregated under federal regulations	48,722	47,107
Investments, at fair value	170,677	165,260
Accounts receivable, net of allowance of $743 and $982 as of December 31, 2025 and 2024, respectively	100,989	91,845
Receivables from broker-dealers, clearing organizations and customers	489,211	357,728
Goodwill	283,667	236,706
Intangible assets, net of accumulated amortization	110,629	98,078
Furniture, equipment, leasehold improvements and capitalized software, net of accumulated depreciation and amortization	112,431	107,298
Operating lease right-of-use assets	51,854	58,132
Prepaid expenses and other assets	46,972	82,584
Total assets	1,934,886	1,789,216
Liabilities
Accrued employee compensation	73,879	68,054
Payables to broker-dealers, clearing organizations and customers	325,959	218,845
Borrowings	220,000	0
Income and other tax liabilities	49,267	3,683
Accounts payable, accrued expenses and other liabilities	42,584	37,320
Operating lease liabilities	64,938	72,654
Total liabilities	776,627	400,556
Commitments and Contingencies (Note 15)
Redeemable noncontrolling interest	12,592	0
Stockholders' equity
Preferred stock	0	0
Common stock	123	123
Additional paid-in capital	305,923	350,701
Treasury stock - Common stock voting, at cost, 5,344,419 shares and 3,374,047 shares as of December 31, 2025 and 2024, respectively	(694,764)	(333,369)
Retained earnings	1,538,746	1,405,904
Accumulated other comprehensive income/(loss)	(4,361)	(34,699)
Total stockholders' equity	1,145,667	1,388,660
Total liabilities, redeemable noncontrolling interest and stockholders' equity	1,934,886	1,789,216
Series A Preferred Stock [Member]
Stockholders' equity
Preferred stock	$ 0	$ 0