REVENUE FROM CONTRACTS WITH CUSTOMERS (Tables)

12 Months Ended

Dec. 31, 2022

Revenue from Contract with Customer [Abstract]

Reconciliation of Revenue from Segments to Consolidated

Revenue from contracts with customers from the Company's six reportable operating segments and the All Other category during the years ended December 31, 2022, 2021, and 2020 is reported below. There were no revenues in the All Other category during the years ended December 31, 2021 and 2020.

	Capital Markets		Wealth Management		Auction and Liquidation		Financial Consulting		Communications		Consumer		All Other		Total
Revenues for the year ended December 31, 2022:
Corporate finance, consulting and investment banking fees	$	169,955	$	—	$	—	$	58,143	$	—	$	—	$	—	$	228,098
Wealth and asset management fees	12,547		204,805		—		—		—		—		—		217,352
Commissions, fees and reimbursed expenses	41,316		19,299		12,581		40,365		—		—		—		113,561
Subscription services	—		—		—		—		219,379		—		—		219,379
Sale of goods	—		—		56,928		—		7,526		77,821		—		142,275
Advertising, licensing and other	—		—		—		—		8,750		18,940		13,797		41,487
Total revenues from contracts with customers	223,818		224,104		69,509		98,508		235,655		96,761		13,797		962,152
Interest income - Loans and securities lending	240,813		—		4,587		—		—		—		—		245,400
Trading (losses) gains on investments	(151,816)		3,522		—		—		—		—		—		(148,294)
Fair value adjustment on loans	(54,334)		—		—		—		—		—		—		(54,334)
Other	69,115		6,631		—		—		—		—		—		75,746
Total revenues	$	327,596	$	234,257	$	74,096	$	98,508	$	235,655	$	96,761	$	13,797	$	1,080,670

	Capital Markets		Wealth Management		Auction and Liquidation		Financial Consulting		Communications		Consumer		Total
	(As Restated)										(As Restated)
Revenues for the year ended December 31, 2021:
Corporate finance, consulting and investment banking fees	$	484,247	$	—	$	—	$	56,439	$	—	$	—	$	540,686
Wealth and asset management fees	6,769		282,711		—		—		—		—		289,480
Commissions, fees and reimbursed expenses	48,382		75,776		19,079		37,873		—		—		181,110
Subscription services	—		—		—		—		79,149		—		79,149
Service contract revenues	—		—		1,090		—		—		—		1,090
Sale of goods	—		—		53,348		—		4,857		—		58,205
Advertising, licensing and other	—		—		—		—		9,341		20,308		29,649
Total revenues from contracts with customers	539,398		358,487		73,517		94,312		93,347		20,308		1,179,369
Interest income - Loans and securities lending	122,723		—		—		—		—		—		122,723
Trading gains on investments	203,287		7,623		—		—		—		—		210,910
Fair value adjustment on loans	9,635		—		—		—		—		—		9,635
Other	16,187		15,874		—		—		—		—		32,061
Total revenues	$	891,230	$	381,984	$	73,517	$	94,312	$	93,347	$	20,308	$	1,554,698

	Capital Markets		Wealth Management		Auction and Liquidation		Financial Consulting		Communications		Consumer		Total
	(As Restated)										(As Restated)
Revenues for the year ended December 31, 2020:
Corporate finance, consulting and investment banking fees	$	255,023	$	—	$	—	$	54,051	$	—	$	—	$	309,074
Wealth and asset management fees	7,391		71,204		—		—		—		—		78,595
Commissions, fees and reimbursed expenses	48,416		—		50,035		36,855		—		—		135,306
Subscription services	—		—		—		—		72,666		—		72,666
Service contract revenues	—		—		13,066		—		—		—		13,066
Sale of goods	—		—		25,663		—		3,472		—		29,135
Advertising, licensing and other	—		—		—		—		11,000		16,458		27,458
Total revenues from contracts with customers	310,830		71,204		88,764		90,906		87,138		16,458		665,300
Interest income - Loans and securities lending	102,499		—		—		—		—		—		102,499
Trading gains on investments	77,906		804		—		—		—		—		78,710
Fair value adjustment on loans	(22,033)		—		—		—		—		—		(22,033)
Other	7,884		1,141		—		716		—		—		9,741
Total revenues	$	477,086	$	73,149	$	88,764	$	91,622	$	87,138	$	16,458	$	834,217