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Shareholders' Deficit - Narrative (Details) - USD ($) |  |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | ---
Sep. 29, 2021 | Jul. 06, 2020 | Sep. 29, 2021 | Dec. 30, 2020 | Sep. 23, 2020 | Sep. 29, 2021 | Sep. 23, 2020 | Dec. 25, 2019
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |
Purchase of treasury stock (in shares) |  |  | 400,000 |  |  |  |  |
Purchase of treasury stock |  |  | $ 6,563,000 |  |  | $ 6,563,000 | $ 34,193,000 |
Retirement of shares (in shares) |  |  |  | 54,000,000 |  |  |  |
Volume-weighted average price (in dollars per share) |  |  |  | $ 10.26 |  |  |  |
Treasury stock, at cost, shares (in shares) | 405,000 |  | 405,000 | 0 |  | 405,000 |  |
Number of shares sold |  |  |  |  | 8,000,000 |  |  |
Common stock, par value (in dollars per share) | $ 0.01 |  | $ 0.01 | $ 0.01 | $ 0.01 | $ 0.01 | $ 0.01 |
Price per share (in dollars per share) |  |  |  |  | $ 9.15 |  | $ 9.15 |
Proceeds from sale of stock |  | $ 69,600,000 |  |  |  |  |  |
Share Repurchase Program 2019 |  |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |
Share repurchase, authorized amount |  |  |  |  |  |  |  | $ 250,000,000
Purchase of treasury stock | $ 8,600,000 |  |  |  |  |  |  |
Remaining shares to be repurchased | $ 241,400,000 |  | $ 241,400,000 |  |  | $ 241,400,000 |  |

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