Business Segment Information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 28, 2019 USD ($)	Dec. 29, 2018 USD ($)	Dec. 28, 2019 USD ($) Segment	Dec. 29, 2018 USD ($)
Business Segment Information
Number of operating segments | Segment			2
Net revenue	$ 273,722	$ 233,700	$ 806,439	$ 721,633
Income before income taxes	24,732	16,947	79,349	60,600
Factory-built housing
Business Segment Information
Net revenue	257,106	220,342	758,564	680,198
Income before income taxes	19,247	14,562	66,023	53,050
Financial services
Business Segment Information
Net revenue	16,616	13,358	47,875	41,435
Income before income taxes	$ 5,485	$ 2,385	$ 13,326	$ 7,550