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Quarterly Distribution of Available Cash - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions |  | 12 Months Ended
--- | --- | ---
Sep. 27, 2024 | Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2022
Quarterly Financial Information Disclosure [Line Items] |  |  |  |
Minimum distribution of available cash per unit |  | $ 0.0675 |  |
Common units distribution amount on annualized basis |  | $ 0.27 |  |
First tier, percentage of cash distribution to common units minimum quarterly distribution |  | 100.00% |  |
Second tier, percentage of available cash distribution to common units for any arrearages |  | 100.00% |  |
Third tier, percentage of available cash distribution to general partner unit holder until minimum quarterly distribution is met |  | 100.00% |  |
Fourth tier, percentage of distributions to common unit holders until first target distribution is met |  | 90.00% |  |
Fourth tier, percentage of distributions to general partner unit holder until first target distribution is met |  | 10.00% |  |
First target distribution |  | $ 0.1125 |  |
Thereafter, percentage of distributions to common unit holders after first target distribution is met |  | 80.00% |  |
Thereafter, percentage of distributions to general partner unit holders after first target distribution is met |  | 20.00% |  |
Fixed charge coverage ratio that must be maintained to make distributions | 1.15 |  |  |
Annual cash distributions declared per common unit |  | $ 0.67 | $ 0.63 | $ 0.59
General partner incentive distributions exclusive of amounts paid subject to management incentive plan |  | $ 1.3 | $ 1.2 | $ 1.0
Maximum |  |  |  |
Quarterly Financial Information Disclosure [Line Items] |  |  |  |
Percentage of excess availability of revolving that must be maintained | 15.00% |  |  |
Availability required to maintained to make distributions | $ 40.0 |  |  |

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- Definition Fourth tier percentage of distributions to general partner unit holders until first target distribution is met. + References No definition available. + Details
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- Definition Per unit of ownership amount of cash distributions declared to unit-holder of a limited partnership (LP). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1 + Details
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