Corporate Investments and Funds Held For Clients - Additional Information (Details) - USD ($)	9 Months Ended
Sep. 30, 2024	Sep. 30, 2023
Investments, Debt and Equity Securities [Abstract]
Debt securities, Available-for-sale, Realized Gain (Loss)	$ 0	$ 0
Investment credit impairment losses	$ 0	$ 0

Amount of realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-9

Name:	us-gaap_DebtSecuritiesAvailableForSaleRealizedGainLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration