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Summary of Significant Accounting Policies (Receivables and Allowances) (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Apr. 03, 2021 | Mar. 28, 2020 | Mar. 30, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Allowance for credit loss on available-for-sale debt securities | $ 0 |  |
Allowance for loan loss, consumer | 3,200 | $ 1,800 |
Allowance for loan losses, commercial | 816 | 393 | $ 180
Accounting Standards Update 2016-13 | Consumer loans |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Impact of adoption of ASU 2016-13 | 2,276 | 0 |
Factory-built housing |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Allowance for doubtful accounts receivable | 0 | $ 0 |
Loans held at acquisition date | Accounting Standards Update 2016-13 | Consumer loans |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Impact of adoption of ASU 2016-13 | $ 1,700 |  |

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