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General (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended
Mar. 28, 2019
Mar. 29, 2018
Numerator:    
Net earnings attributable to The Marcus Corporation $ 1,860 $ 9,821
Denominator:    
Denominator for basic EPS 29,883 27,895
Effect of dilutive employee stock options 616 539
Denominator for diluted EPS 30,499 28,434
Common Stock [Member]    
Net earnings per share - Basic:    
Common Stock $ 0.06 $ 0.36
Net earnings per share- Diluted:    
Common Stock 0.06 0.35
Common Class B [Member]    
Net earnings per share - Basic:    
Common Stock 0.06 0.33
Net earnings per share- Diluted:    
Common Stock $ 0.06 $ 0.32