Commercial Loans Receivables and Allowance for Loan Loss (Concentrations of Inventory Finance Receivables) (Details)	Jul. 01, 2017	Apr. 01, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial Loans Receivable Principal Balance Concentration	19.80%	23.00%
INDIANA
Accounts, Notes, Loans and Financing Receivable [Line Items]
Inventory Finance Receivables Geographic Concentration Percentage	10.30%	10.70%
ARIZONA
Accounts, Notes, Loans and Financing Receivable [Line Items]
Inventory Finance Receivables Geographic Concentration Percentage	17.80%	21.30%
CALIFORNIA
Accounts, Notes, Loans and Financing Receivable [Line Items]
Inventory Finance Receivables Geographic Concentration Percentage	15.10%	11.00%
Texas [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Inventory Finance Receivables Geographic Concentration Percentage	12.50%	11.00%
OREGON
Accounts, Notes, Loans and Financing Receivable [Line Items]
Inventory Finance Receivables Geographic Concentration Percentage	13.20%	15.70%