Business Segment Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 28, 2019 USD ($)	Sep. 29, 2018 USD ($)	Sep. 28, 2019 USD ($) Segment	Sep. 29, 2018 USD ($)
Business Segment Information
Number of operating segments | Segment			2
Net revenue	$ 268,675	$ 241,530	$ 532,717	$ 487,933
Income before income taxes	27,255	19,517	54,617	43,653
Factory-built housing
Business Segment Information
Net revenue	252,690	227,094	501,458	459,856
Income before income taxes	22,463	16,880	46,776	38,488
Financial services
Business Segment Information
Net revenue	15,985	14,436	31,259	28,077
Income before income taxes	$ 4,792	$ 2,637	$ 7,841	$ 5,165