Loss Per Share (Narrative) (Details) - shares |
3 Months Ended | 9 Months Ended | ||
---|---|---|---|---|
Sep. 30, 2021 |
Sep. 24, 2020 |
Sep. 30, 2021 |
Sep. 24, 2020 |
|
Stock Options And Non-Vested Restricted Stock | ||||
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||||
Shares excluded from the calculation of diluted weighted average shares | 4,797,243 | 4,484,702 | 4,797,243 | 4,484,702 |
Common Units | ||||
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||||
Shares excluded from the calculation of diluted weighted average shares | 86,188,344 | 84,531,328 | 85,601,326 | 83,678,699 |