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