Delinquency status of consumer loans (Details) - USD ($) $ in Thousands	Oct. 02, 2021	Apr. 03, 2021	Sep. 26, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Consumer loans receivable	$ 62,576	$ 80,027	$ 80,027
Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Consumer loans receivable	59,602	76,378
31 - 60 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Consumer loans receivable	110	508
61 - 90 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Consumer loans receivable	2,502	21
91+ days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Consumer loans receivable	$ 362	$ 3,120