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Summary of Significant Accounting Policies (Revenue Recognition) (Details) | 12 Months Ended
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Apr. 03, 2021 | Mar. 28, 2020 | Mar. 30, 2019
Revenue Recognition [Abstract] |  |  |
Concentration Risk on Factory Built Housing Description | No independent distributor accounted for 10% or more of factory-built housing revenue | No independent distributor accounted for 10% or more of factory-built housing revenue | No independent distributor accounted for 10% or more of factory-built housing revenue

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