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Loans to Bank Customers - Nonperforming Loans (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Nonperforming Loans [Line Items] |  |
Nonperforming loans | $ 2,458 | $ 2,488
Residential |  |
Nonperforming Loans [Line Items] |  |
Nonperforming loans | 146 | 153
Installment |  |
Nonperforming Loans [Line Items] |  |
Nonperforming loans | 92 | 96
Secured credit card |  |
Nonperforming Loans [Line Items] |  |
Nonperforming loans | $ 2,220 | $ 2,239

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