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Compensation - Compensation Expense Related to Class A Common Stock (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
LPU amortization	$ 19,862	$ 18,455	$ 53,696	$ 54,288
RSU amortization	4,509	2,785	10,906	7,640
Equity-based compensation and allocations of net income    to limited partnership units and FPUs	78,490	33,007	170,275	103,030
LPUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of common stock and grants of exchangeability	47,177	3,554	86,253	28,950
Class A Common Stock | LPUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of common stock and grants of exchangeability	47,177	3,554	86,253	28,950
Allocation of net income	6,943	8,213	19,420	12,152
LPU amortization	19,861	18,455	53,696	54,288
RSU amortization	4,509	2,785	10,906	7,640
Equity-based compensation and allocations of net income    to limited partnership units and FPUs	$ 78,490	$ 33,007	$ 170,275	$ 103,030

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- Definition

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- Definition

Aggregate amount of net income allocated to limited partners.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187171-122770

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