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Fair Value Measurements - Additional Information (Details) |  |  | 1 Months Ended | 12 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Apr. 30, 2021 USD ($) | Oct. 15, 2020 | Nov. 30, 2020 USD ($) | Feb. 28, 2019 USD ($) | Sep. 25, 2021 USD ($) | Sep. 26, 2020 USD ($) | Sep. 28, 2019 USD ($) | Oct. 31, 2020 USD ($) | Oct. 16, 2020 USD ($) | Mar. 28, 2020 venture | Mar. 30, 2019 customer | Feb. 01, 2019 | Dec. 31, 2017 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of retail customers that exited |  |  |  |  |  |  |  |  |  | 1 | 1 |  |
Asset impairments |  |  |  |  | $ 0 | $ 3,566,000 | $ 0 |  |  |  |  |  |
Impairment charge |  |  |  |  | 0 | 0 |  |  |  |  |  |  |
Carrying value of debt |  |  |  |  | 1,185,764,000 | 694,053,000 |  |  |  |  |  |  |
Senior notes |  |  |  |  |  |  |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying value of debt |  |  |  |  | $ 1,184,006,000 | 693,858,000 |  |  |  |  |  |  |
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 |  |  |  |  | $ 408,500,000 |  |  |  |  |  |  |  |
Carrying value of debt |  |  |  |  | $ 394,200,000 |  |  |  |  |  |  |  |
Debt redemption price percentage | 104.125% |  |  |  |  |  |  |  |  |  |  |  |
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 |  |  |  |  | $ 517,200,000 |  |  |  |  |  |  |  |
Carrying value of debt |  |  |  |  | 492,800,000 |  |  |  |  |  |  |  |
Debt redemption price percentage |  | 104.125% |  |  |  |  |  |  |  |  |  |  |
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 |  |  |  |  | 318,600,000 | 316,000,000.0 |  |  |  |  |  |  |
Carrying value of debt |  |  |  |  | 297,000,000 | 296,600,000 |  |  |  |  |  |  |
Senior notes | Senior Notes Due November 2023 |  |  |  |  |  |  |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate |  |  | 6.125% |  |  |  |  |  |  |  |  |  |
Debt redemption amount |  |  | $ 400,000,000 |  |  |  |  |  |  |  |  |  |
Debt redemption price percentage |  |  | 101.531% |  |  |  |  |  |  |  |  |  |
Arden Companies |  |  |  |  |  |  |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Percent of investment purchased |  |  |  | 55.00% |  |  |  |  |  |  | 55.00% | 55.00% |
Purchase price |  |  |  | $ 13,400,000 |  |  |  |  |  |  |  |  |
Arden Companies | Selling, General and Administrative Expenses |  |  |  |  |  |  |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Gain on held investment |  |  |  | $ 3,200,000 |  |  |  |  |  |  |  |  |
Pet Segment |  |  |  |  |  |  |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Asset impairments |  |  |  |  |  |  | 2,500,000 |  |  |  |  |  |
Impairment charge |  |  |  |  | $ 0 | $ 0 | 2,500,000 |  |  |  |  |  |
Pet Segment | Selling, General and Administrative Expenses |  |  |  |  |  |  |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Asset impairments |  |  |  |  |  |  | $ 2,500,000 |  |  |  |  |  |

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