Revenue from Contracts with Customers Disaggregation of Revenue (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
Factory-built housing
Disaggregation of Revenue
Net revenue									1,037,889	999,340	905,726
Financial Services
Disaggregation of Revenue
Net revenue									70,162	62,434	57,020
HUD Code | Factory-built housing
Disaggregation of Revenue
Net revenue									842,515	813,074	727,950
Modular | Factory-built housing
Disaggregation of Revenue
Net revenue									91,896	84,498	90,636
Park Model RVs | Factory-built housing
Disaggregation of Revenue
Net revenue									46,862	46,427	38,057
Factory-built housing, other | Factory-built housing
Disaggregation of Revenue
Net revenue									56,616	55,341	49,083
Insurance Agency Commissions | Financial Services
Disaggregation of Revenue
Net revenue									3,102	3,352	3,065
Financial service, other | Financial Services
Disaggregation of Revenue
Net revenue									$ 67,060	$ 59,082	$ 53,955