Fair Value Disclosures (Detail Textuals) (Finance receivables)	6 Months Ended
	Sep. 30, 2013
Contracts | Minimum
Financial Instruments Not Measured At Fair Value [Line Items]
Initial term of the indirect finance receivables	12 months
Contracts | Maximum
Financial Instruments Not Measured At Fair Value [Line Items]
Initial term of the indirect finance receivables	72 months
Direct Loans | Minimum
Financial Instruments Not Measured At Fair Value [Line Items]
Initial term of the direct finance receivables	6 months
Direct Loans | Maximum
Financial Instruments Not Measured At Fair Value [Line Items]
Initial term of the direct finance receivables	48 months