Revenue from Contracts with Customers (Disaggregation of Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 26, 2020	Dec. 28, 2019	Dec. 26, 2020	Dec. 28, 2019
Disaggregation of Revenue [Line Items]
Revenues	$ 288,772	$ 273,722	$ 801,549	$ 806,439
Factory-built housing
Disaggregation of Revenue [Line Items]
Revenues	270,822	257,106	749,879	758,564
Factory-built housing | HUD Code
Disaggregation of Revenue [Line Items]
Revenues	222,684	208,966	609,853	619,001
Factory-built housing | Modular
Disaggregation of Revenue [Line Items]
Revenues	26,059	24,508	67,325	63,327
Factory-built housing | Park Model RVs
Disaggregation of Revenue [Line Items]
Revenues	8,296	10,219	31,045	34,831
Factory-built housing | Product and Service, Other
Disaggregation of Revenue [Line Items]
Revenues	13,783	13,413	41,656	41,405
Financial Services
Disaggregation of Revenue [Line Items]
Revenues	17,950	16,616	51,670	47,875
Financial Services | Insurance Agency Commissions
Disaggregation of Revenue [Line Items]
Revenues	840	783	2,387	2,212
Financial Services | Financial Service, Other
Disaggregation of Revenue [Line Items]
Revenues	$ 17,110	$ 15,833	$ 49,283	$ 45,663