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Commitments, Contingencies and Concentrations - Additional Information (Detail) $ in Millions		12 Months Ended
	Apr. 30, 2020 USD ($)	Apr. 03, 2021 USD ($) Employee Agreement	Mar. 28, 2020 USD ($)	Mar. 30, 2019
Commitment And Contingencies [Line Items]
Losses under repurchase obligations	$ 219.5
Reserve for estimated losses under repurchase agreements		$ 1.4	$ 1.0
Guarantee obligations term		12 years
Number of employees \| Employee		7,700
Canada [Member] \| Collective Bargaining Agreements One [Member]
Commitment And Contingencies [Line Items]
Agreement expiration date		2019-11
Canada [Member] \| Collective Bargaining Agreements Two [Member]
Commitment And Contingencies [Line Items]
Agreement expiration date		2021-05
Canada [Member] \| Collective Bargaining Agreements Three [Member]
Commitment And Contingencies [Line Items]
Agreement expiration date		2021-06
Canada [Member] \| Collective Bargaining Agreements Four [Member]
Commitment And Contingencies [Line Items]
Agreement expiration date		2022-06
Canada [Member] \| Collective Bargaining Agreements Five [Member]
Commitment And Contingencies [Line Items]
Agreement expiration date		2022-11
Canada [Member] \| Manufacturing Facilities [Member]
Commitment And Contingencies [Line Items]
Number of separate collective bargaining agreements \| Agreement		5
Canada [Member] \| Manufacturing Facilities [Member] \| Collective Bargaining Agreements [Member]
Commitment And Contingencies [Line Items]
Number of employees \| Employee		900
Geographic Concentration Risk \| Canada [Member]
Commitment And Contingencies [Line Items]
Net assets		$ 87.2	$ 45.0
Sales [Member] \| Geographic Concentration Risk \| Canada [Member]
Commitment And Contingencies [Line Items]
Concentration risk percentage		7.00%	6.00%	7.00%
Letters of Credit [Member]
Commitment And Contingencies [Line Items]
Contingent obligation		$ 30.4
Long-term Debt [Member]
Commitment And Contingencies [Line Items]
Contingent obligation		12.6
Casualty Insurance Program [Member]
Commitment And Contingencies [Line Items]
Contingent obligation		17.5
Bonding Agreements [Member]
Commitment And Contingencies [Line Items]
Contingent obligation		0.3
Surety Bond [Member]
Commitment And Contingencies [Line Items]
Contingent obligation		$ 34.4