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Summary of Significant Accounting Policies - Gift Card Program (Details) - USD ($)
$ in Thousands
12 Months Ended
Mar. 28, 2020
Mar. 30, 2019
Mar. 31, 2018
Reconciliation of Activity in Program      
Beginning balance $ 10,211    
Ending balance 11,112 $ 10,211  
Gift Card Program      
Reconciliation of Activity in Program      
Beginning balance 8,796 7,857 $ 7,108
Current year issuances 16,745 14,112 11,007
Current year redemptions (14,874) (12,341) (9,871)
Current year breakage (549) (832) (387)
Ending balance $ 10,118 $ 8,796 $ 7,857