Fair Value Measurements Information About Fair Value Measurements Using Significant Unobservable Inputs (Details) $ in Thousands	6 Months Ended
	Sep. 30, 2016 USD ($)
Discounted Cash Flow Valuation Technique | Securitized Beneficial Interests
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items]
Fair value of unobservable inputs	$ 29,371
Securitized Market Rate	3.83%
Payment Speed	61 days
Discounted Cash Flow Valuation Technique | Tobacco Supplier Guarantees One
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items]
Fair value of unobservable inputs	$ 3,549
Discounted Cash Flow Valuation Technique | Minimum | Tobacco Supplier Guarantees One
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items]
Market Interest Rate	16.50%
Discounted Cash Flow Valuation Technique | Maximum | Tobacco Supplier Guarantees One
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items]
Market Interest Rate	24.75%
Historical Loss Valuation Technique | Tobacco Supplier Guarantees One
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items]
Fair value of unobservable inputs	$ 918
Historical Loss Valuation Technique | Minimum | Tobacco Supplier Guarantees One
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items]
Fair Value Inputs, Loss Severity	9.90%
Historical Loss Valuation Technique | Maximum | Tobacco Supplier Guarantees One
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items]
Fair Value Inputs, Loss Severity	15.92%