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Distributions of Available Cash - Additional Information (Details) - $ / shares |  | 3 Months Ended | 12 Months Ended
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Jul. 22, 2021 | Sep. 25, 2021 | Jun. 26, 2021 | Mar. 27, 2021 | Dec. 26, 2020 | Sep. 26, 2020 | Jun. 27, 2020 | Mar. 28, 2020 | Dec. 28, 2019 | Sep. 28, 2019 | Jun. 29, 2019 | Mar. 30, 2019 | Dec. 29, 2018 | Sep. 25, 2021
Distributions Made To Members Or Limited Partners [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Distributions to its partners |  |  |  |  |  |  |  |  |  |  |  |  |  | 45 days
Declaration date of quarterly distribution | Jul. 22, 2021 |  |  |  |  |  |  |  |  |  |  |  |  |
Distributions paid (in dollars per unit) | $ 0.325 | $ 0.3250 | $ 0.3250 | $ 0.3000 | $ 0.3000 | $ 0.3000 | $ 0.3000 | $ 0.6000 | $ 0.6000 | $ 0.6000 | $ 0.6000 | $ 0.6000 | $ 0.6000 |
Distribution made to equate to an increase in percentage | 8.30% |  |  |  |  |  |  |  |  |  |  |  |  |

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