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Management Long-Term Incentive Plan - Narrative (Detail) - USD ($) $ / shares in Units, $ in Thousands |  | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Nov. 02, 2020 | Dec. 25, 2020 | Dec. 27, 2019 | Dec. 25, 2020 | Dec. 27, 2019 | Mar. 27, 2020 | Mar. 29, 2019
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items] |  |  |  |  |  |  |
Stock-based compensation |  | $ 45,876 | $ 303 | $ 46,901 | $ 1,051 | $ 1,435 | $ 1,441
RSU |  |  |  |  |  |  |
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items] |  |  |  |  |  |  |
Grants in period (in shares) |  |  |  | 1,426,944 |  |  |
Grant date fair value (in dollars per share) |  |  |  | $ 14.04 |  |  |
RSU | RSU Conversion Program |  |  |  |  |  |  |
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items] |  |  |  |  |  |  |
Grant date fair value (in dollars per share) | $ 14.00 |  |  | $ 14 |  |  |
LTIP |  |  |  |  |  |  |
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items] |  |  |  |  |  |  |
Rolling performance period |  |  |  | 3 years |  | 3 years |
LTIP | RSU Conversion Program |  |  |  |  |  |  |
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items] |  |  |  |  |  |  |
Stock-based compensation | $ 607 |  |  | $ 607 |  |  |
LTIP | RSU | RSU Conversion Program |  |  |  |  |  |  |
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items] |  |  |  |  |  |  |
Grants in period (in shares) | 602,490 |  |  | 602,490 |  |  |
TRIP | RSU Conversion Program |  |  |  |  |  |  |
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items] |  |  |  |  |  |  |
Stock-based compensation | $ 421 |  |  | $ 421 |  |  |
TRIP | RSU | RSU Conversion Program |  |  |  |  |  |  |
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items] |  |  |  |  |  |  |
Grants in period (in shares) | 348,911 |  |  | 348,911 |  |  |

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