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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, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
LPU amortization	$ 19,524	$ 10,689	$ 35,833	$ 13,734
RSU amortization	3,273	2,696	4,855	3,710
Equity-based compensation and allocations of net income to limited partnership units and FPUs	27,819	43,752	70,023	55,893
LPUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of common stock and grants of exchangeability	2,362	25,587	25,396	29,123
Class A Common Stock [Member] | LPUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of common stock and grants of exchangeability	2,362	25,587	25,396	29,123
Allocations of net income	2,660	4,780	3,939	9,326
LPU amortization	19,524	10,689	35,833	13,734
RSU amortization	3,273	2,696	4,855	3,710
Equity-based compensation and allocations of net income to limited partnership units and FPUs	$ 27,819	$ 43,752	$ 70,023	$ 55,893

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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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