Securities Available for Sale - Additional information (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Senior asset-backed securities related to Structured Program transactions
Debt Securities, Available-for-sale [Line Items]
Gross realized gain from sale of AFS securities	$ 0.0	$ 0.0	$ 0.0	$ 0.0

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details