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Basis of Presentation and Business - Additional information (Detail) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Sep. 27, 2025 USD ($) | Sep. 28, 2024 USD ($) | Sep. 27, 2025 USD ($) Facility | Sep. 28, 2024 USD ($) | Mar. 29, 2025 USD ($) | Jun. 28, 2025 Center
Significant Accounting Policies [Line Items] |  |  |  |  |  |
Trade accounts receivable, net | $ 94,114 |  | $ 94,114 |  | $ 84,103 |
Payments for loans receivable |  |  | 41,000 |  | 38,100 |
Floor plan receivables on nonaccrual status |  |  | 0 |  |  |
Interest income from floor plan receivables | 800 | $ 600 | 1,500 | $ 1,100 |  |
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |
Trade accounts receivable, net | 3,000 |  | $ 3,000 |  | $ 1,300 |
U.S [Member] |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |
Number of manufacturing facilities | Facility |  |  | 42 |  |  |
Number of sales centers | Center |  |  |  |  |  | 82
Canada [Member] |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |
Number of manufacturing facilities | Facility |  |  | 4 |  |  |
Kelowna, British Columbia [Member] |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |
Incurred plant closure costs | $ 2,600 |  | $ 6,500 |  |  |

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