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Funds Borrowed - Summary of Maturity of Broker Pools, Excluding Strategic Partner Reserve Deposits (Detail)
$ in Thousands
Sep. 30, 2022
USD ($)
Debt Disclosure [Abstract]  
Three months or less $ 110,763
Over three months through six months 128,094
Over six months through one year 240,904
Over one year 1,078,941
Total deposits $ 1,558,702