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Revenue Recognition - Representation of Performance Obligations Relate to Nature, Amount, Timing and Uncertainty of Revenue and Cash Flows (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Financial Advisory Segment [Member]
Disaggregation Of Revenue [Line Items]
Net Revenue	$ 1,666,156	$ 1,764,509	$ 1,420,501
Asset Management Segment [Member]
Disaggregation Of Revenue [Line Items]
Net Revenue	1,204,927	1,424,985	1,167,466
Asset Management Segment [Member] | Management Fees and Other [Member]
Disaggregation Of Revenue [Line Items]
Net Revenue	1,137,583	1,304,582	1,109,439
Asset Management Segment [Member] | Incentive Fees [Member]
Disaggregation Of Revenue [Line Items]
Net Revenue	$ 67,344	$ 120,403	$ 58,027

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No definition available.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
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