Business Segment Information (Details) $ in Thousands	3 Months Ended								12 Months Ended
	Apr. 03, 2021 USD ($)	Dec. 26, 2020 USD ($)	Sep. 26, 2020 USD ($)	Jun. 27, 2020 USD ($)	Mar. 28, 2020 USD ($)	Dec. 28, 2019 USD ($)	Sep. 28, 2019 USD ($)	Jun. 29, 2019 USD ($)	Apr. 03, 2021 USD ($) Segment	Mar. 28, 2020 USD ($)	Mar. 30, 2019 USD ($)
Business Segment Information
Number of operating segments | Segment									2
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
Income before income taxes									96,912	92,979	86,676
Depreciation									5,577	5,177	4,374
Amortization									747	606	324
Income tax expense									20,266	17,913	18,054
Capital expenditures									25,537	14,340	7,636
Total assets	951,833				810,431				951,833	810,431
Factory-built housing
Business Segment Information
Net revenue									1,037,889	999,340	905,726
Income before income taxes									78,937	78,531	72,959
Depreciation									5,450	5,120	4,318
Amortization									560	419	136
Income tax expense									16,204	14,574	14,891
Capital expenditures									25,465	13,211	7,522
Total assets	711,579				607,808				711,579	607,808
Financial services
Business Segment Information
Net revenue									70,162	62,434	57,020
Income before income taxes									17,975	14,448	13,717
Depreciation									127	57	56
Amortization									187	187	188
Income tax expense									4,062	3,339	3,163
Capital expenditures									72	1,129	114
Total assets	$ 240,254				$ 202,623				240,254	202,623
Finance
Business Segment Information
Net revenue									24,195	24,894	21,425
Insurance
Business Segment Information
Net revenue									$ 45,967	$ 37,540	$ 35,595