Revenue Recognition - Summary of Corporate Net Sales (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 29, 2018	Dec. 30, 2017
Disaggregation of Revenue [Line Items]
Consolidated Net Sales	$ 354,671	$ 294,378	$ 1,032,368	$ 798,443
U.S Factory-built Housing [Member]
Disaggregation of Revenue [Line Items]
Consolidated Net Sales	309,518		882,257
Canadian Factory-built Housing [Member]
Disaggregation of Revenue [Line Items]
Consolidated Net Sales	27,130		79,885
Corporate Other [Member]
Disaggregation of Revenue [Line Items]
Consolidated Net Sales	18,023		70,226
Manufacturing and Retail [Member]
Disaggregation of Revenue [Line Items]
Consolidated Net Sales	335,143		950,701
Manufacturing and Retail [Member] | U.S Factory-built Housing [Member]
Disaggregation of Revenue [Line Items]
Consolidated Net Sales	308,013		870,816
Manufacturing and Retail [Member] | Canadian Factory-built Housing [Member]
Disaggregation of Revenue [Line Items]
Consolidated Net Sales	27,130		79,885
Commercial [Member]
Disaggregation of Revenue [Line Items]
Consolidated Net Sales	1,505		11,441
Commercial [Member] | U.S Factory-built Housing [Member]
Disaggregation of Revenue [Line Items]
Consolidated Net Sales	1,505		11,441
Transportation [Member]
Disaggregation of Revenue [Line Items]
Consolidated Net Sales	18,023		70,226
Transportation [Member] | Corporate Other [Member]
Disaggregation of Revenue [Line Items]
Consolidated Net Sales	$ 18,023		$ 70,226