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Loans to Bank Customers - Credit Quality Indicators (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Non-Classified
Outstanding Loans [Line Items]
Total loans	$ 73,985	$ 46,933
Classified
Outstanding Loans [Line Items]
Total loans	2,768	2,570
Residential | Non-Classified
Outstanding Loans [Line Items]
Total loans	7,714	6,841
Residential | Classified
Outstanding Loans [Line Items]
Total loans	19	34
Commercial | Non-Classified
Outstanding Loans [Line Items]
Total loans	22,688	2,585
Commercial | Classified
Outstanding Loans [Line Items]
Total loans	0	0
Installment | Non-Classified
Outstanding Loans [Line Items]
Total loans	4,902	5,439
Installment | Classified
Outstanding Loans [Line Items]
Total loans	914	0
Consumer | Non-Classified
Outstanding Loans [Line Items]
Total loans	29,901	25,536
Consumer | Classified
Outstanding Loans [Line Items]
Total loans	0	0
Secured credit card | Non-Classified
Outstanding Loans [Line Items]
Total loans	8,780	6,532
Secured credit card | Classified
Outstanding Loans [Line Items]
Total loans	$ 1,835	$ 2,536

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Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

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