CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020
OPERATING ACTIVITIES
Net Income		$ 106,477	$ 51,538	[1]
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Depreciation		1,180	1,214	[1]
Non-Cash Compensation		15,824	13,204	[1]
Directors' Share Grants		646	455	[1]
Net Realized and Unrealized Gains from Investments		(4,392)	(630)	[1]
Equity in the Losses/ (Earnings) of Affiliates		(2,170)	929	[1]
Non-Cash Performance Fees		(29)
Foreign Currency Translation Adjustment		(866)	565	[1]
Noncash Lease Expense		2,503	2,282	[1]
Change in Liability to Selling and Converting Shareholders		(607)	(213)	[1]
Deferred Income Taxes		4,787	3,432	[1]
Changes in Operating Assets and Liabilities:
Advisory Fees Receivable		(4,603)	(3,637)	[1]
Due from Broker		32	(113)	[1]
Prepaid Expenses and Other Assets		800	273	[1]
Due to Broker		(56)	16	[1]
Accounts Payable, Accrued Expenses, and Other Liabilities		6,686	(8,442)	[1]
Tax Receivable Agreement Payments		(2,476)	(2,881)	[1]
Change in Lease Liability		(2,521)	(2,330)	[1]
Purchases of Investments		(61,449)	(23,935)	[1]
Proceeds from Sale of Investments		17,061	19,602	[1]
Net Cash Provided by Operating Activities		76,827	51,329	[1]
INVESTING ACTIVITIES
Purchases of Investments		(18,981)	(25,169)	[1]
Proceeds from Sale of Investments		17,172	50,371	[1]
Net Consolidations (Deconsolidations) of Sponsored Investment Funds		578	(123)	[1]
Payments (to)/ from Related Parties		(1,049)	(1,011)	[1]
Purchase of Property and Equipment		(491)	(43)	[1]
Net Cash(Used In)/ Provided by Investing Activities		(2,771)	24,025	[1]
FINANCING ACTIVITIES
Repurchase and Retirement of Class A Common Stock		(8,655)	(7,662)	[1]
Repurchase and Retirement of Class B Units		(491)	(640)	[1]
Sale of Shares under Equity Incentive Plan		315	2,295	[1]
Distributions to Non-Controlling Interests		(73,773)	(47,590)	[1]
Contributions from Non-Controlling Interests		30,023	1,013	[1]
Dividends		(5,870)	(9,702)	[1]
Net Cash Used in Financing Activities		(58,451)	(62,286)	[1]
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH		15,605	13,068	[1]
CASH, CASH EQUIVALENTS AND RESTRICTED CASH — Beginning of Year	[1]	66,584	53,516
Net Change in Cash, Cash Equivalents and Restricted Cash		15,605	13,068	[1]
CASH, CASH EQUIVALENTS AND RESTRICTED CASH — End of Year		82,189	66,584	[1]
Supplementary Cash Flow Information:
Unit Conversion		321	390	[1]
Issuance of Shares under Equity Incentive Plan		3,852	3,842	[1]
Income Taxes Paid		698	562	[1]
Supplementary Schedule of Non-Cash Investing Transactions:
Increase in Noncontrolling Interests Due to Net Consolidation (Deconsolidation) of Sponsored Investment Vehicles		$ 9,730	$ (1,685)	[1]

[1] Net consolidation (Deconsolidation) of Sponsored Investment Funds have been reclassified to conform to the current year presentation.