Receivables Sales Agreement - Additional Information (Narrative) (Detail) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Receivables Sales Agreement [Line Items]
Factored Accounts Receivable, net	$ 85.6	$ 97.7
Cash from customers not yet remitted	10.0
Proceeds from factored receivables	100.0
Maximum
Receivables Sales Agreement [Line Items]
Proceeds from factored receivables	$ 100.0

Receivables Sales Agreement

No definition available.

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- Definition

Amount due from customers for fees and charges arising from transactions related to the entity's brokerage activities and operations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 940
-SubTopic 310
-URI https://asc.fasb.org/subtopic&trid=2176284

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- Definition

Amount, before valuation allowance, of accounts and financing receivables held for sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 948
-SubTopic 310
-Section 45
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- Definition

The total amount due to the entity within one year of the balance sheet date (or one operating cycle, if longer) from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(5))
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