Basis of Presentation and Business - Additional information (Detail) $ in Thousands	9 Months Ended
	Dec. 28, 2019 USD ($) Facility Center shares	Mar. 31, 2019 USD ($)	Mar. 30, 2019 shares	Jan. 05, 2018 shares
Organization And Business Operations [Line Items]
Common stock, shares issued | shares	56,666,000		56,657,000
Operating lease, right-of-use asset	$ 11,616
Operating lease, liability	$ 11,616
ASC 842 [Member]
Organization And Business Operations [Line Items]
Operating lease, right-of-use asset		$ 13,700
Operating lease, liability		$ 13,700
U.S [Member]
Organization And Business Operations [Line Items]
Number of manufacturing facilities | Facility	33
Number of sales centers | Center	21
Canada [Member]
Organization And Business Operations [Line Items]
Number of manufacturing facilities | Facility	5
Indiana Corporation [Member]
Organization And Business Operations [Line Items]
Ownership percentage				15.50%
Champion Enterprises Holdings, LLC [Member]
Organization And Business Operations [Line Items]
Common stock, shares issued | shares				47,752,008
Ownership percentage				84.50%