Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018
Cash Flows From Operating Activities
Net Income	$ 227,961	$ 250,695
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Net (Gains) Losses on Investments, Investment Securities and Contingent Consideration	(9,330)	(26)
Equity Method Investments	2,516	2,535
Equity-Based and Other Deferred Compensation	278,422	208,858
Depreciation, Amortization and Accretion	49,174	21,432
Bad Debt Expense	2,569	2,244
Deferred Taxes	(14,621)	(1,091)
Decrease (Increase) in Operating Assets:
Investment Securities	(459)	242
Financial Instruments Owned and Pledged as Collateral at Fair Value	(1,351)	(2,142)
Securities Purchased Under Agreements to Resell	1,299	7,457
Accounts Receivable	(1,567)	(51,341)
Receivable from Employees and Related Parties	3,153	(6,878)
Other Assets	(25,491)	(59,145)
(Decrease) Increase in Operating Liabilities:
Accrued Compensation and Benefits	(389,446)	(51,246)
Accounts Payable and Accrued Expenses	4,059	5,379
Securities Sold Under Agreements to Repurchase	18	(5,303)
Payables to Employees and Related Parties	(3,147)	3,001
Taxes Payable	(32,868)	(11,267)
Other Liabilities	64	(2,758)
Net Cash Provided by Operating Activities	90,955	310,646
Cash Flows From Investing Activities
Investments Purchased	(3,822)	(45)
Distributions of Private Equity Investments	1,698	2,143
Investment Securities:
Proceeds from Sales and Maturities	376,934	162,318
Purchases	(570,783)	(304,950)
Maturity of Certificates of Deposit	100,000	63,527
Purchase of Certificates of Deposit	(211,861)	(100,000)
Purchase of Furniture, Equipment and Leasehold Improvements	(46,155)	(11,881)
Net Cash Provided by (Used in) Investing Activities	(353,989)	(188,888)
Cash Flows From Financing Activities
Issuance of Noncontrolling Interests	600	1,165
Distributions to Noncontrolling Interests	(44,947)	(30,374)
Short-Term Borrowings	30,000	30,000
Repayment of Short-Term Borrowings	(30,000)	(30,000)
Repayment of Subordinated Borrowings	0	(6,799)
Issuance of Notes Payable	205,718	0
Debt Issuance Costs	(2,032)	0
Purchase of Treasury Stock and Noncontrolling Interests	(304,078)	(212,959)
Dividends	(73,875)	(57,448)
Net Cash Provided by (Used in) Financing Activities	(218,614)	(306,415)
Effect of Exchange Rate Changes on Cash	(4,869)	1,711
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash	(486,517)	(182,946)
Cash, Cash Equivalents and Restricted Cash-Beginning of Period	800,096	617,385
Cash, Cash Equivalents and Restricted Cash-End of Period	313,579	434,439
SUPPLEMENTAL CASH FLOW DISCLOSURE
Payments for Interest	14,750	16,008
Payments for Income Taxes	120,929	47,989
Accrued Dividends	10,903	9,092
Purchase of Noncontrolling Interest	$ 2,701	$ 0

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Amount of cash outflow for purchase of marketable security.

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Amount of cash inflow from a noncontrolling interest. Includes, but is not limited to, purchase of additional shares or other increase in noncontrolling interest ownership.

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The cash inflow associated with the aggregate amount received by the entity through sale or maturity of marketable securities (held-to-maturity or available-for-sale) during the period.

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Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable.

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