Fair Value Disclosures - Schedule of fair value measurement inputs and valuation techniques (Details 1) - USD ($) $ in Thousands		12 Months Ended
		Mar. 31, 2024	Mar. 31, 2023
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Percentage of receivable interest discount		6.30%	6.50%
Estimated Fair Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Finance receivables held for sale		$ 38,773	$ 105,971
Repossessed assets held for sale		668	1,491
Fair Value Inputs Level3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Finance receivables held for sale		38,773	105,971
Repossessed assets held for sale		668	$ 1,491
Fair Value Inputs Level3 [Member] | Finance Receivables [Member] | Estimated Fair Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Finance receivables held for sale		38,773
Fair Value Inputs Level3 [Member] | Repossessed Assets [Member] | Estimated Fair Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Repossessed assets held for sale		$ 668
Fair Value Inputs Level3 [Member] | Valuation Technique Discounted Cash Flow [Member] | Finance Receivables [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Weighted Average	[1]	17.30%
Fair Value Inputs Level3 [Member] | Valuation Technique Discounted Cash Flow [Member] | Repossessed Assets [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Weighted Average	[1]	17.30%
Maximum [Member] | Fair Value Inputs Level3 [Member] | Valuation Technique Discounted Cash Flow [Member] | Finance Receivables [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Percentage of receivable interest discount		17.60%
Maximum [Member] | Fair Value Inputs Level3 [Member] | Valuation Technique Discounted Cash Flow [Member] | Repossessed Assets [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Percentage of receivable interest discount		17.60%
Minimum [Member] | Fair Value Inputs Level3 [Member] | Valuation Technique Discounted Cash Flow [Member] | Finance Receivables [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Percentage of receivable interest discount		16.40%
Minimum [Member] | Fair Value Inputs Level3 [Member] | Valuation Technique Discounted Cash Flow [Member] | Repossessed Assets [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Percentage of receivable interest discount		16.40%

[1]     (1) Weighted averages are determined by the relative fair value of the instruments or the relative contribution to the instruments fair value.