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Finance Receivables, Credit Quality Information, and Allowance for Credit Losses - Summary of Finance Receivables (Detail) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024	Sep. 30, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 2,053,017	$ 1,892,535	$ 1,819,756
Large Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,512,140	1,336,780	1,293,410
Small Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 540,877	$ 555,755	$ 526,346

X

- Definition

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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Amortized cost, before allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

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