Commercial Loans Receivables and Allowance for Loan Loss (Concentrations of Commercial Loans Receivables) (Details)	Jun. 29, 2019	Mar. 30, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial Loans Receivable Principal Balance Concentration	21.80%	22.00%
CALIFORNIA
Geographic Concentration of Commercial Loans Receivables in Key States
Commercial Loans Receivables Geographic Concentration Percentage	18.80%	21.10%
ARIZONA
Geographic Concentration of Commercial Loans Receivables in Key States
Commercial Loans Receivables Geographic Concentration Percentage	18.20%	16.30%
OREGON
Geographic Concentration of Commercial Loans Receivables in Key States
Commercial Loans Receivables Geographic Concentration Percentage		10.40%