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Fair Value Measurements - Additional Information (Details) - USD ($) | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Sep. 27, 2025 | Sep. 28, 2024 | Sep. 30, 2023 | Apr. 30, 2021 | Oct. 31, 2020 | Oct. 16, 2020 | Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Impairment charge | $ 1,000,000.0 | $ 12,800,000 | $ 11,500,000 |  |  |  |
Carrying value of debt | 1,191,703,000 | 1,190,048,000 |  |  |  |  |
Pet Products Segment |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Impairment charge | 1,000,000 | 12,800,000 | 7,500,000 |  |  |  |
Garden Products Segment |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Impairment charge |  |  | $ 3,900,000 |  |  |  |
Senior notes |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Carrying value of debt | $ 1,191,542,000 | 1,189,655,000 |  |  |  |  |
Senior notes | Senior notes, interest at 4.125%, payable semi-annually, principal due April 2031 |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Debt, aggregate principal amount |  |  |  | $ 400,000,000 |  |  |
Debt instrument, interest rate | 4.125% |  |  | 4.125% |  |  |
Estimated fair value of senior notes | $ 374,400,000 | 367,200,000 |  |  |  |  |
Carrying value of debt | $ 396,700,000 | 396,000,000 |  |  |  |  |
Senior notes | Senior notes, interest at 4.125%, payable semi-annually, principal due October 2030 |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Debt, aggregate principal amount |  |  |  |  | $ 500,000,000 | $ 500,000,000 |
Debt instrument, interest rate | 4.125% |  |  |  | 4.125% | 4.125% |
Estimated fair value of senior notes | $ 473,500,000 | 465,200,000 |  |  |  |  |
Carrying value of debt | 496,000,000 | 495,200,000 |  |  |  |  |
Senior notes | Senior Notes Due February 2028 |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Debt, aggregate principal amount |  |  |  |  |  |  | $ 300,000,000
Debt instrument, interest rate |  |  |  |  |  |  | 5.125%
Estimated fair value of senior notes | 299,400,000 | 299,200,000 |  |  |  |  |
Carrying value of debt | $ 298,900,000 | $ 298,400,000 |  |  |  |  |

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