Loans to Bank Customers - Schedule of Loan Summary (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	$ 82,257	$ 76,753
Total outstanding (as a percent)	100.00%	100.00%
Total Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	$ 4,399	$ 4,753
Percentage of outstanding (as a percent)	5.40%	6.20%
30-59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	$ 2,476	$ 2,329
Percentage of outstanding (as a percent)	3.00%	3.00%
60-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	$ 469	$ 589
Percentage of outstanding (as a percent)	0.60%	0.80%
90 Days or More Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	$ 1,454	$ 1,835
Percentage of outstanding (as a percent)	1.80%	2.40%
Total Current or Less Than 30 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	$ 77,858	$ 72,000
Total current or less than 30 days past due (as a percent)	94.60%	93.80%
Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	$ 7,519	$ 7,733
Residential \| Total Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	0	0
Residential \| 30-59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	0	0
Residential \| 60-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	0	0
Residential \| 90 Days or More Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	0	0
Residential \| Total Current or Less Than 30 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	7,519	7,733
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	2,678	22,688
Commercial \| Total Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	0	0
Commercial \| 30-59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	0	0
Commercial \| 60-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	0	0
Commercial \| 90 Days or More Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	0	0
Commercial \| Total Current or Less Than 30 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	2,678	22,688
Installment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	3,978	5,816
Installment \| Total Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	0	43
Installment \| 30-59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	0	8
Installment \| 60-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	0	35
Installment \| 90 Days or More Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	0	0
Installment \| Total Current or Less Than 30 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	3,978	5,773
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	59,318	29,901
Consumer \| Total Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	1,996	1,777
Consumer \| 30-59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	1,996	1,777
Consumer \| 60-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	0	0
Consumer \| 90 Days or More Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	0	0
Consumer \| Total Current or Less Than 30 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	57,322	28,124
Secured credit card
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	8,764	10,615
Secured credit card \| Total Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	2,403	2,933
Secured credit card \| 30-59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	480	544
Secured credit card \| 60-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	469	554
Secured credit card \| 90 Days or More Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	1,454	1,835
Secured credit card \| Total Current or Less Than 30 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Outstanding	$ 6,361	$ 7,682