Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Cash Flows From Operating Activities
Net Income	$ 378,624	$ 518,602
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Net (Gains) Losses on Investments, Investment Securities and Contingent Consideration	27,305	(12,067)
Equity Method Investments, Including Gain on Sale	3,291	3,292
Equity-Based and Other Deferred Compensation	357,401	309,204
Noncash Lease Expense	27,096	30,368
Depreciation, Amortization and Accretion	21,579	21,360
Bad debt expense, net of reversals	4,905	15
Deferred Taxes	(11,300)	9,364
Decrease (Increase) in Operating Assets:
Investment Securities	(1,541)	(1,971)
Accounts Receivable	30,729	(31,122)
Receivable from Employees and Related Parties	1,817	2,091
Other Assets	(15,036)	(49,736)
(Decrease) Increase in Operating Liabilities:
Accrued Compensation and Benefits	(636,901)	(144,111)
Accounts Payable and Accrued Expenses	3,475	8,814
Payables to Employees and Related Parties	5,826	9,076
Taxes Payable	(12,537)	(13,505)
Other Liabilities	(27,560)	(129,770)
Net Cash Provided by Operating Activities	157,173	529,904
Cash Flows From Investing Activities
Investments Purchased	0	(3,862)
Proceeds from Redemption of G5 Debt Security in 2021 and Sale of Investments in 2022	18,300	11,779
Distributions of Private Equity Investments	238	316
Investment Securities:
Proceeds from Sales and Maturities of Investment Securities	2,326,799	1,565,429
Purchases of Investment Securities	(1,893,948)	(1,640,970)
Maturity of Certificates of Deposit	217,837	73,995
Purchase of Certificates of Deposit	(231,639)	(191,498)
Purchase of Furniture, Equipment and Leasehold Improvements	(19,072)	(23,417)
Net Cash Provided by (Used In) Investing Activities	418,515	(208,228)
Cash Flows From Financing Activities
Issuance of Noncontrolling Interests	300	2,063
Distributions to Noncontrolling Interests	(38,970)	(45,768)
Payment of Notes Payable	(67,000)	(38,000)
Issuance of Notes Payable	67,000	38,000
Debt Issuance Costs and Make-Whole Amount	(1,826)	(355)
Purchase of Treasury Stock and Noncontrolling Interests	(491,936)	(533,737)
Dividends	(99,082)	(91,922)
Net Cash Provided by (Used in) Financing Activities	(631,514)	(669,719)
Effect of Exchange Rate Changes on Cash	(49,296)	(2,306)
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash	(105,122)	(350,349)
Cash, Cash Equivalents and Restricted Cash – Beginning of Period	587,293	838,224
Cash, Cash Equivalents and Restricted Cash – End of Period	482,171	487,875
SUPPLEMENTAL CASH FLOW DISCLOSURE
Payments for Interest	10,954	12,454
Payments for Income Taxes	165,021	118,892
Accrued Dividends	11,245	10,718
Settlement of Sale of Trilantic VI	9,188	0
Settlement of Contingent Consideration	1,083	0
Receipt of Equity Securities in Settlement of Accounts Receivable	$ 0	$ 1,955