Revenue Recognition - Summary of Corporate Net Sales (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 26, 2020	Sep. 28, 2019	Sep. 26, 2020	Sep. 28, 2019
Disaggregation of Revenue [Line Items]
Consolidated Net Sales	$ 322,366	$ 354,458	$ 595,651	$ 726,346
Manufacturing and Retail [Member]
Disaggregation of Revenue [Line Items]
Consolidated Net Sales	300,527	334,706	564,581	690,011
Commercial [Member]
Disaggregation of Revenue [Line Items]
Consolidated Net Sales	7,391	4,531	7,391	4,531
Transportation [Member]
Disaggregation of Revenue [Line Items]
Consolidated Net Sales	14,448	15,221	23,679	31,804
U.S Factory-built Housing [Member]
Disaggregation of Revenue [Line Items]
Consolidated Net Sales	283,360	312,830	532,219	644,435
U.S Factory-built Housing [Member] | Manufacturing and Retail [Member]
Disaggregation of Revenue [Line Items]
Consolidated Net Sales	275,969	308,299	524,828	639,904
U.S Factory-built Housing [Member] | Commercial [Member]
Disaggregation of Revenue [Line Items]
Consolidated Net Sales	7,391	4,531	7,391	4,531
Canadian Factory-built Housing [Member]
Disaggregation of Revenue [Line Items]
Consolidated Net Sales	24,558	26,407	39,753	50,107
Canadian Factory-built Housing [Member] | Manufacturing and Retail [Member]
Disaggregation of Revenue [Line Items]
Consolidated Net Sales	24,558	26,407	39,753	50,107
Corporate Other [Member]
Disaggregation of Revenue [Line Items]
Consolidated Net Sales	14,448	15,221	23,679	31,804
Corporate Other [Member] | Transportation [Member]
Disaggregation of Revenue [Line Items]
Consolidated Net Sales	$ 14,448	$ 15,221	$ 23,679	$ 31,804