Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Carrying Value
Financial Assets
Loans to bank customers, net of allowance	$ 27,638	$ 21,421
Financial Liabilities
Deposits	3,193,855	3,450,105
Level 3 | Fair Value
Financial Assets
Loans to bank customers, net of allowance	27,411	18,201
Level 2 | Fair Value
Financial Liabilities
Deposits	$ 3,193,770	$ 3,450,017