Summary of Significant Accounting Policies - Sales Returns Reserve (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 28, 2020	Mar. 30, 2019	Mar. 31, 2018
Sales Returns Reserve
Reserve for Returns	$ 10,211	$ 10,211
Reconciliation of Activity in Reserve
Beginning balance	10,211
Ending balance	11,112	10,211
Allowance for Sales Returns
Sales Returns Reserve
Reserve for Returns	1,648	1,587	$ 1,544
Reconciliation of Activity in Reserve
Beginning balance	1,761	1,587	1,544
Provisions	43,664	39,026	35,189
Sales returns	(43,777)	(38,852)	(35,146)
Ending balance	$ 1,648	$ 1,761	$ 1,587