Segment Information - Schedule of Financial Information by Reportable Segments (Detail) - USD ($) $ in Thousands	3 Months Ended
Jun. 29, 2019	Jun. 30, 2018	Mar. 30, 2019
Segment Reporting Information [Line Items]
Net sales	$ 371,888	$ 322,261
Operating income	24,320	10,072
Depreciation	3,110	2,430
Amortization	(1,362)	(481)
Amortization of intangible assets	1,362	481
Assets	722,491		$ 699,954
U.S Factory-built Housing [Member]
Segment Reporting Information [Line Items]
Net sales	331,605	266,124
Canadian Factory-built Housing [Member]
Segment Reporting Information [Line Items]
Net sales	23,700	27,354
Operating Segments [Member] \| U.S Factory-built Housing [Member]
Segment Reporting Information [Line Items]
Net sales	331,605	266,124
Operating income	36,145	22,916
Depreciation	2,638	2,045
Amortization of intangible assets	1,362	420
Capital expenditures	3,358	1,281
Assets	491,518	488,878
Operating Segments [Member] \| Canadian Factory-built Housing [Member]
Segment Reporting Information [Line Items]
Net sales	23,700	27,354
Operating income	3,055	3,521
Depreciation	242	231
Amortization of intangible assets		61
Capital expenditures	111	210
Assets	60,350	59,260
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Net sales	16,583	28,783
Operating income	(10,408)	(13,454)
Depreciation	230	154
Capital expenditures	1,057	529
Assets	170,623	151,816
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
Net sales	371,888	322,261
Operating income	24,320	10,072
Depreciation	3,110	2,430
Amortization of intangible assets	1,362	481
Capital expenditures	4,526	2,020
Assets	$ 722,491	$ 699,954

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