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Unit-based Compensation - Additional Information (Detail) |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | ---
Mar. 26, 2022 USD ($) shares | Apr. 30, 2021 $ / shares shares | Dec. 31, 2021 USD ($) shares | Mar. 26, 2022 USD ($) shares | Mar. 27, 2021 USD ($) | Mar. 26, 2022 USD ($) shares | Mar. 27, 2021 USD ($) | Sep. 25, 2021 USD ($) shares | Sep. 26, 2020 USD ($) shares | Sep. 28, 2019 USD ($) shares | Sep. 28, 2019
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |  |  |  |  |  |  |  |
Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount | $ |  |  |  |  |  |  |  | $ 1,200,000 |  |  |
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition |  |  |  |  |  |  |  | 2 years |  |  |
Adjustments to Additional Paid in Capital, Warrant Issued | $ |  |  |  |  |  |  |  | $ 26,999,000 |  |  |
Common Class A [Member] | Walmart [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership percentage |  |  | 6.50% |  |  |  |  |  |  |  |
Walmart Inc. [Member] | Common Voting Units Class A [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |  |  |  |  |  |  |  |
Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount | $ | $ 16,200 |  |  | $ 16,200 |  | $ 16,200 |  |  |  |  |
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition | 9 years 1 month 6 days |  |  |  |  |  |  |  |  |  |
Walmart Inc. [Member] | Common Class A [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |  |  |  |  |  |  |  |
Units issued during the period on exercise of warrants units |  |  | 446,741 |  |  |  |  |  |  |  |
Warrant Units [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |  |  |  |  |  |  |  |
Share-based Payment Arrangement, Expense | $ |  |  |  |  |  | $ 0 |  |  |  |  |
Warrants Vested Units |  |  |  |  |  |  |  | 446,741 |  |  |
Share Based Compensation by Share Based Award Equity Instruments Other than Options Cumulatively Vested |  |  |  |  |  |  |  | 446,741 |  |  |
Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount | $ |  |  |  |  |  |  |  | $ 16,200 |  |  |
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition |  |  |  |  |  | 9 years 7 months 6 days |  |  |  |  |
Adjustments to Additional Paid in Capital, Warrant Issued | $ |  |  |  |  |  |  |  | $ 27,000 |  |  |
Share based compensation by share based award equity instruments other than options granted |  |  |  |  |  |  |  | 714,022 |  |  |
Warrant Units [Member] | Walmart Inc. [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |  |  |  |  |  |  |  |
Warrants Vested Units |  |  | 446,741 |  |  |  |  |  |  |  |
Warrants Vested Value | $ |  |  | $ 173,800,000 |  |  |  |  |  |  |  |
Additional Warrant Units [Member] | Walmart Inc. [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation by Share Based Award Equity Instruments Other than Options Cumulatively Vested | 0 |  |  | 0 |  | 0 |  |  |  |  |
Subscription Agreement with Walmart [Member] | Warrant Units [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights |  | 714,022 |  |  |  |  |  |  |  |  |
Warrants grant date fair value | $ / shares |  | $ 60.44 |  |  |  |  |  |  |  |  |
Number of Additional Warrants Issuable Per Tranche |  | 44,000 |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares |  | $ 389.03 |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Maturity Date |  | Apr. 30, 2031 |  |  |  |  |  |  |  |  |
Subscription Agreement with Walmart [Member] | Warrant Units [Member] | Share-based Payment Arrangement, Tranche One [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights |  | 446,741 |  |  |  |  |  |  |  |  |
Percentage of Entity Common Unit Issued and Oustanding |  | 6.50% |  |  |  |  |  |  |  |  |
Warrants grant date fair value | $ / shares |  | $ 60.44 |  |  |  |  |  |  |  |  |
Subscription Agreement with Walmart [Member] | Warrant Units [Member] | Share-based Payment Arrangement, Tranche Two [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights |  | 267,281 |  |  |  |  |  |  |  |  |
Percentage of Entity Common Unit Issued and Oustanding |  | 3.50% |  |  |  |  |  |  |  |  |
Officers Employees And Directors [Member] | Value Appreciation Rights [Member] |  |  |  |  |  |  |  |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |  |  |  |  |  |  |  |
Share-based Payment Arrangement, Expense | $ |  |  |  | $ 900,000 | $ 100,000 | $ 1,100,000 | $ 100,000 | $ 11,600,000 | $ 100,000 | $ 0 |
Share Based Compensation by Share Based Award Equity Instruments Other than Options Cumulatively Vested | 3,554,588 |  |  | 3,554,588 |  | 3,554,588 |  | 3,672,430 |  |  |
Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount | $ | $ 400,000 |  |  | $ 400,000 |  | $ 400,000 |  |  |  |  |
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition |  |  |  |  |  | 1 year 6 months |  |  |  |  |
Share based compensation by share based award vesting period |  |  |  |  |  |  |  |  |  |  | 5 years
Share based compensation by share based award equity instruments other than options granted |  |  |  | 0 |  |  |  | 0 | 0 | 0 |
Share based compensation award by share based award equity instruments other than options cash payment as a percentage in appreciation of fair market value of fraction of a unit |  |  |  |  |  |  |  | 1 |  |  |
Minimum Annual Revenue To Be Realized For Vesting | $ |  |  |  |  |  |  |  | $ 100,000,000 |  |  |

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