Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
NET INCOME	$ 207,922	$ 218,185
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization of property	25,716	24,857
Noncash lease expense	46,965	40,268
Amortization of deferred expenses and share-based incentive compensation	282,955	317,111
Amortization and other acquisition-related costs	1,359	9,534
Deferred tax provision (benefit)	30,680	(6,413)
Loss on extinguishment of debt		6,505
(Increase) decrease in operating assets and increase (decrease) in operating liabilities:
Receivables-net	86,038	6,866
Investments	(1,035)	43,559
Other assets	(160,066)	(128,562)
Accrued compensation and benefits and other liabilities	(265,128)	(213,501)
Net cash provided by operating activities	255,406	318,409
CASH FLOWS FROM INVESTING ACTIVITIES:
Additions to property	(34,210)	(40,669)
Disposals of property	151	98
Net cash used in investing activities	(34,059)	(40,571)
Proceeds from:
Issuance of senior debt, net of expenses		492,032
Customer deposits		345,394
Contributions from noncontrolling interests	91	1,193
Payments for:
Senior debt		(255,746)
Customer deposits	(37,850)
Distributions to noncontrolling interests	(1,921)	(8,913)
Payments under tax receivable agreement	(25,454)	(23,687)
Purchase of Class A common stock	(95,227)	(430,281)
Class A common stock dividends	(147,233)	(205,559)
Settlement of share-based incentive compensation	(71,508)	(96,956)
Other financing activities	(5,316)	(6,144)
Net cash used in financing activities	(384,418)	(188,667)
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS AND RESTRICTED CASH	52,234	(92,487)
NET DECREASE IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH	(110,837)	(3,316)
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH— January 1	2,455,559	2,291,885
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH— September 30	$ 2,344,722	$ 2,288,569