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Compensation - Compensation Expense Related to Class A Common Stock (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
LPU amortization	$ 16,740	$ 19,524	$ 33,834	$ 35,833
RSU amortization	3,481	3,273	6,397	4,855
Equity-based compensation and allocations of net income    to limited partnership units and FPUs	58,290	27,819	91,785	70,023
LPUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of common stock and grants of exchangeability	31,222	2,362	39,076	25,396
Class A Common Stock | LPUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of common stock and grants of exchangeability	31,222	2,362	39,076	25,396
Allocation of net income	6,846	2,660	12,477	3,939
LPU amortization	16,741	19,524	33,835	35,833
RSU amortization	3,481	3,273	6,397	4,855
Equity-based compensation and allocations of net income    to limited partnership units and FPUs	$ 58,290	$ 27,819	$ 91,785	$ 70,023

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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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