Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Cash Flows from Operating Activities:
Net income (loss)	$ 28,052	$ 37,867
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation expense, intangible asset and other amortization	16,121	18,164
Stock-based compensation	6,734	6,831
Equity in earnings of equity method investments	(980)	(498)
Deferred taxes, net	1,440	1,086
Changes in operating assets and liabilities:
Sales (purchases) of investments, net	552	5,987
Accounts receivable, net and other assets	10,917	(341)
Accrued compensation and benefits, accounts payable, accrued liabilities and other liabilities	(121,449)	(120,631)
Operating activities of consolidated investment products ("CIP"):
Net cash provided by (used in) operating activities	(3,787)	(34,528)
Cash Flows from Investing Activities:
Capital expenditures	(2,984)	(1,923)
Net cash provided by (used in) investing activities	(2,984)	(2,460)
Cash Flows from Financing Activities:
Repayments on credit agreement	(687)	(688)
Common stock dividends paid	(17,146)	(14,929)
Repurchase of common shares	(20,000)	(5,000)
Payment of contingent consideration	(23,140)	(24,234)
Taxes paid related to net share settlement of restricted stock units	(6,109)	(9,854)
Investment management subsidiary equity sales (purchases)	(1,053)	(419)
Net contributions from (distributions to) noncontrolling interests	17,264	16,772
Net cash provided by (used in) financing activities	(174,461)	(56,146)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	509	(203)
Net increase (decrease) in cash, cash equivalents and restricted cash	(180,723)	(93,337)
Cash, cash equivalents and restricted cash, beginning of period	400,309	341,014
Cash, cash equivalents and restricted cash, end of period	219,586	247,677
Non-Cash Financing Activities:
Increase (decrease) to noncontrolling interests due to consolidation (deconsolidation) of CIP, net	(3,749)	(13,624)
Common stock dividends payable	15,550	13,467
Reconciliation of cash, cash equivalents and restricted cash
Cash, cash equivalents and restricted cash at end of period	219,586	247,677
Consolidated Entity excluding Consolidated Investment Products
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Realized and unrealized (gains) losses on investments of CIP, net	957	(3,393)
Operating activities of consolidated investment products ("CIP"):
Realized and unrealized (gains) losses on investments of CIP, net	957	(3,393)
Reconciliation of cash, cash equivalents and restricted cash
Cash and cash equivalents	135,380
Consolidated Investment Products
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Realized and unrealized (gains) losses on investments of CIP, net	4,039	(3,732)
Operating activities of consolidated investment products ("CIP"):
Realized and unrealized (gains) losses on investments of CIP, net	4,039	(3,732)
Purchases of investments by CIP	(327,705)	(304,516)
Sales of investments by CIP	375,074	323,720
Net proceeds (purchases) of short-term investments and securities sold short by CIP	(72)	206
Change in other assets and liabilities of CIP	2,533	4,722
Cash Flows from Investing Activities:
Change in cash and cash equivalents of CIP due to consolidation (deconsolidation), net	0	(537)
Cash Flows from Financing Activities:
Payments on borrowings by CIP	(123,590)	$ (17,794)
Reconciliation of cash, cash equivalents and restricted cash
Cash and cash equivalents	83,474
Cash pledged or on deposit of CIP	$ 732