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Shareholders' Deficit - Share Repurchase (Details) - USD ($) $ / shares in Units, shares in Thousands | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | ---
Nov. 30, 2018 | Mar. 25, 2020 | Sep. 25, 2019 | Mar. 27, 2019 | Sep. 23, 2020 | Sep. 25, 2019 | Dec. 25, 2019 | Dec. 26, 2018
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |
Purchase of treasury stock (in shares) |  | 1,700 |  |  |  |  |  |
Purchase of treasury stock |  | $ 34,200,000 | $ 12,807,000 |  | $ 34,193,000 | $ 50,804,000 |  |
Payments for repurchase of common stock |  |  |  |  | $ 36,008,000 | $ 50,649,000 |  |
Treasury Stock |  |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |
Purchase of treasury stock (in shares) |  |  | 589 |  | 1,690 | 2,632 |  |
Purchase of treasury stock |  |  | $ 12,807,000 |  | $ 34,193,000 | $ 50,804,000 |  |
Share Repurchase Program 2017 |  |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |
Share repurchase, authorized amount |  | $ 200,000,000 |  |  |  |  |  |
Share Repurchase Program 2019 |  |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |
Share repurchase, authorized amount |  |  |  |  |  |  | $ 250,000,000 |
Remaining shares to be repurchased |  |  |  |  | $ 248,000,000.0 |  |  |
Accelerated Share Repurchase 2018 |  |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |
Purchase of treasury stock (in shares) | 1,100 |  |  |  |  |  |  |
Purchase of treasury stock | $ 18,200,000 |  |  |  |  |  |  |
Share repurchase, authorized amount | 25,000,000 |  |  |  |  |  |  |
Remaining shares to be repurchased |  |  |  |  |  |  |  | $ 6,800,000
Payments for repurchase of common stock | $ 25,000,000 |  |  |  |  |  |  |
Volume-weighted average price (in dollars per share) |  |  |  | $ 17.04 |  |  |  |
Accelerated Share Repurchase 2018 | Treasury Stock |  |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |
Purchase of treasury stock (in shares) |  |  |  | 400 |  | 389 |  |
Purchase of treasury stock |  |  |  | $ 6,800,000 |  |  |  |

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