Finance Receivables, Credit Quality Information, and Allowance for Credit Losses - Summary of Credit Losses by Product and Origination Year (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]
Credit losses, 2026			$ 330	$ 519
Credit losses, 2025			87,814	70,120
Credit losses, 2024			38,498	38,135
Credit losses, 2023			10,732	10,599
Credit losses, 2022			3,322	2,435
Credit losses, prior			727	429
Credit losses, Total Credit Losses	$ 70,262	$ 60,528	141,423	122,237
Large Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Credit losses, 2026			125	222
Credit losses, 2025			47,243	32,547
Credit losses, 2024			24,812	25,552
Credit losses, 2023			9,124	9,316
Credit losses, 2022			3,188	2,348
Credit losses, prior			721	410
Credit losses, Total Credit Losses	43,271	34,640	85,213	70,395
Small Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Credit losses, 2026			205	297
Credit losses, 2025			40,571	37,573
Credit losses, 2024			13,686	12,583
Credit losses, 2023			1,608	1,283
Credit losses, 2022			134	87
Credit losses, prior			6	19
Credit losses, Total Credit Losses	$ 26,991	$ 25,888	$ 56,210	$ 51,842

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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