Business Segment Information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016 USD ($)	Dec. 26, 2015 USD ($)	Dec. 31, 2016 USD ($) Segment	Dec. 26, 2015 USD ($)
Business Segment Information
Number of operating segments | Segment			2
Net revenue	$ 202,310	$ 181,427	$ 575,799	$ 535,059
Income before income taxes	17,279	12,005	38,807	33,127
Factory-built housing [Member]
Business Segment Information
Net revenue	188,546	167,280	536,513	492,281
Income before income taxes	12,370	9,703	33,437	26,674
Financial services [Member]
Business Segment Information
Net revenue	13,764	14,147	39,286	42,778
Income before income taxes	$ 4,909	$ 2,302	$ 5,370	$ 6,453