Description of Business and Basis of Presentation - Narrative (Detail) - office	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022
Class of Stock [Line Items]
Number of offices	80
Percentage of common stock distributed	80.00%
Commission's receivable settled period	10 days
Guarantee obligations	16.70%
Total Revenues \| Geographic Concentration Risk \| Canada \| Customer
Class of Stock [Line Items]
Concentration risk percentage	2.90%	2.20%

Number of office.

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- Definition

Percentage of company post IPO common stock distributed by the Parent company before the IPO in the IPO.

+ References

No definition available.

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- Definition

Period of settlement for receivable balances.

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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

Indicates, if estimable, (as a percentage) the approximate extent to which the proceeds from liquidation of any assets held either as collateral or by third parties would be expected to cover the maximum potential amount of future payments under the guarantee or each group of similar guarantees.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
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