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Commitments, Contingencies and Concentrations - Additional Information (Detail) | 12 Months Ended
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Mar. 30, 2019 USD ($) Employee Agreement | Mar. 31, 2018 USD ($) | Apr. 01, 2017 USD ($)
Commitment And Contingencies [Line Items] |  |  |
Losses under repurchase obligations | $ 173,400,000 |  |
Reserve for estimated losses under repurchase agreements | 1,000,000 | $ 700,000 |
Guarantee outstanding | 800,000 |  |
Guarantee total amount | $ 800,000 |  |
Guarantee obligations term | 12 years |  |
Net rent expense | $ 6,600,000 | 5,800,000 | $ 5,000,000
Number of employees | Employee | 7,000 |  |
Canada [Member] | Collective Bargaining Agreements One [Member] |  |  |
Commitment And Contingencies [Line Items] |  |  |
Number of employees | Employee | 400 |  |
Agreement expiration date | 2019-11 |  |
Canada [Member] | Collective Bargaining Agreements Two [Member] |  |  |
Commitment And Contingencies [Line Items] |  |  |
Number of employees | Employee | 400 |  |
Agreement expiration date | 2020-06 |  |
Canada [Member] | Manufacturing Facilities [Member] |  |  |
Commitment And Contingencies [Line Items] |  |  |
Number of employees | Employee | 850 |  |
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 | 700 |  |
Geographic Concentration Risk | Canada [Member] |  |  |
Commitment And Contingencies [Line Items] |  |  |
Net assets | $ 41,600,000 | $ 35,900,000 |
Sales [Member] | Geographic Concentration Risk | Canada [Member] |  |  |
Commitment And Contingencies [Line Items] |  |  |
Concentration risk percentage | 7.00% | 9.00% | 11.00%
Letters of Credit [Member] |  |  |
Commitment And Contingencies [Line Items] |  |  |
Contingent obligation | $ 21,000,000 |  |
Long-term Debt [Member] |  |  |
Commitment And Contingencies [Line Items] |  |  |
Contingent obligation | 12,600,000 |  |
Casualty Insurance Program [Member] |  |  |
Commitment And Contingencies [Line Items] |  |  |
Contingent obligation | 7,900,000 |  |
Repurchase Obligations [Member] |  |  |
Commitment And Contingencies [Line Items] |  |  |
Contingent obligation | 200,000 |  |
Bonding Agreements [Member] |  |  |
Commitment And Contingencies [Line Items] |  |  |
Contingent obligation | 300,000 |  |
Surety Bond [Member] |  |  |
Commitment And Contingencies [Line Items] |  |  |
Contingent obligation | $ 23,600,000 |  |
Minimum [Member] |  |  |
Commitment And Contingencies [Line Items] |  |  |
Period to potentially repurchase units | 24 months |  |
Guarantee obligations percentage | 3.00% |  |
Operating leases original lease term | 3 years |  |
Maximum [Member] |  |  |
Commitment And Contingencies [Line Items] |  |  |
Period to potentially repurchase units | 30 months |  |
Guarantee obligations percentage | 50.00% |  |
Operating leases original lease term | 10 years |  |

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