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Disclosures about Fair Value of Financial Instruments - Statement of Changes in Level 3 Assets Measured at Fair Value on a Recurring Basis (Details) - Significant Unobservable Inputs (Level 3) - Fair Value, Measurements, Recurring - Other Installment Loans $ in Thousands	3 Months Ended
	Dec. 31, 2023 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Originations	$ 218,794
Principal payments	(30,732)
Change in fair value recognized in earnings	0
Balance at December 31	$ 188,062

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