Commercial Loans Receivables (Changes in the Estimated Allowance for Loan Loss) (Details) - Commercial Loans Receivable - USD ($) $ in Thousands	3 Months Ended
Jun. 27, 2020	Jun. 29, 2019
Financing Receivable, Allowance for Credit Loss [Line Items]
Balance at beginning of period	$ 393	$ 180
Change in estimated loan losses, net	0	11
Loans charged off, net of recoveries	0	0
Balance at end of period	828	191
Accounting Standards Update 2016-13
Financing Receivable, Allowance for Credit Loss [Line Items]
Impact of adoption of ASU 2016-13	$ 435	$ 0

Amount of other addition (reduction) in allowance reserve for credit loss.

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Amount, after recoveries, of loans and leases that have been written-off.

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Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of expense related to estimated loss from loan and lease transactions.

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