Business Segment Information (Details) $ in Thousands	3 Months Ended
Jul. 01, 2017 USD ($) Segment	Jul. 02, 2016 USD ($)
Business Segment Information
Number of operating segments \| Segment	2
Net revenue	$ 206,816	$ 185,141
Income before income taxes	15,651	8,430
Factory-built housing [Member]
Business Segment Information
Net revenue	192,882	172,486
Income before income taxes	13,170	10,738
Financial services [Member]
Business Segment Information
Net revenue	13,934	12,655
Income before income taxes	$ 2,481	$ (2,308)

Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

No definition available.

Name:	us-gaap_NumberOfOperatingSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration