Revenue from Contract with Customer Narrative (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Apr. 03, 2021	Dec. 26, 2020	Sep. 26, 2020	Jun. 27, 2020	Mar. 28, 2020	Dec. 28, 2019	Sep. 28, 2019	Jun. 29, 2019	Apr. 03, 2021	Mar. 28, 2020	Mar. 30, 2019
Disaggregation of Revenue
Net revenue	$ 306,502	$ 288,772	$ 257,976	$ 254,801	$ 255,335	$ 273,722	$ 268,675	$ 264,042	$ 1,108,051	$ 1,061,774	$ 962,746
Site improvements on Retail Sales
Disaggregation of Revenue
Net revenue									$ 41,100	$ 30,000	$ 24,900