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Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2021
Goodwill And Intangible Assets [Line Items]
Goodwill	$ 394,185	$ 379,480	$ 377,240	$ 379,421
Amortization of intangible assets related to acquisitions	15	$ 15
Financial Advisory Segment [Member]
Goodwill And Intangible Assets [Line Items]
Goodwill	312,938		312,699
Asset Management Segment [Member]
Goodwill And Intangible Assets [Line Items]
Goodwill	$ 81,247		$ 64,541

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- Definition

Goodwill and intangible assets.

+ References

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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