Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Details) $ in Millions	3 Months Ended	9 Months Ended	12 Months Ended
	Mar. 31, 2023 segment	Sep. 30, 2023 USD ($) segment	Dec. 31, 2022 USD ($) segment
Accounting Policies [Abstract]
Number of reportable segments | segment	3	3	1
Amount deposit accounts exceeded FDIC insured limit | $		$ 301.8	$ 324.7
Risk pool surplus or deficits, settlement period after risk pool performance year		18 months