Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash Flows From Operating Activities
Net Income	$ 286,988	$ 329,480
Adjustments to Reconcile Net Income to Net Cash Provided by (Used In) Operating Activities:
Net (Gains) Losses on Investments, Investment Securities and Contingent Consideration	28,678	(22,193)
Equity Method Investments, Including Gain on Sale	3,968	5,038
Equity-Based and Other Deferred Compensation	238,641	202,186
Noncash Lease Expense	18,760	20,311
Depreciation, Amortization and Accretion	14,386	14,129
Bad debt expense, net of reversals	1,503	(1,766)
Deferred Taxes	(8,369)	3,982
Decrease (Increase) in Operating Assets:
Investment Securities	(528)	(1,946)
Accounts Receivable	21,713	42,638
Receivable from Employees and Related Parties	3,917	4,558
Other Assets	(67,406)	(20,482)
(Decrease) Increase in Operating Liabilities:
Accrued Compensation and Benefits	(705,445)	(359,317)
Accounts Payable and Accrued Expenses	5,865	6,001
Payables to Employees and Related Parties	25,801	23,791
Taxes Payable	(16,531)	(10,537)
Other Liabilities	(20,561)	(121,415)
Net Cash Provided by (Used In) Operating Activities	(168,620)	114,458
Cash Flows From Investing Activities
Investments Purchased	0	(1,355)
Proceeds from Redemption of G5 Debt Security in 2021 and Sale of Investments in 2022	18,300	11,779
Distributions of Private Equity Investments	27	171
Investment Securities:
Proceeds from Sales and Maturities of Investment Securities	1,703,871	992,836
Purchases of Investment Securities	(1,078,819)	(852,579)
Maturity of Certificates of Deposit	138,305	0
Purchase of Certificates of Deposit	(154,640)	(122,510)
Purchase of Furniture, Equipment and Leasehold Improvements	(11,449)	(16,374)
Net Cash Provided by Investing Activities	615,595	11,968
Cash Flows From Financing Activities
Issuance of Noncontrolling Interests	300	1,107
Distributions to Noncontrolling Interests	(32,541)	(29,642)
Payment of Notes Payable	(67,000)	(38,000)
Issuance of Notes Payable	67,000	38,000
Debt Issuance Costs and Make-Whole Amount	(1,641)	(355)
Purchase of Treasury Stock and Noncontrolling Interests	(457,068)	(423,188)
Dividends	(70,868)	(65,139)
Net Cash Provided by (Used in) Financing Activities	(561,818)	(517,217)
Effect of Exchange Rate Changes on Cash	(19,056)	3,558
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash	(133,899)	(387,233)
Cash, Cash Equivalents and Restricted Cash – Beginning of Period	587,293	838,224
Cash, Cash Equivalents and Restricted Cash – End of Period	453,394	450,991
SUPPLEMENTAL CASH FLOW DISCLOSURE
Payments for Interest	9,164	8,912
Payments for Income Taxes	140,187	70,772
Accrued Dividends	8,362	7,096
Settlement of Sale of Trilantic VI	9,188	0
Receipt of Equity Securities in Settlement of Accounts Receivable	0	1,955
Debt Issuance Costs Accrued	$ 185	$ 0