General (Details 1) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 28, 2018	Jun. 29, 2017	Jun. 28, 2018	Jun. 29, 2017
Numerator:
Net earnings attributable to The Marcus Corporation	$ 18,619	$ 10,124	$ 28,440	$ 19,577
Denominator:
Denominator for basic EPS	28,010	27,784	27,952	27,746
Effect of dilutive employee stock options	611	702	582	689
Denominator for diluted EPS	28,621	28,486	28,534	28,435
Common Stock [Member]
Net earnings per share - basic:
Common Stock	$ 0.68	$ 0.38	$ 1.05	$ 0.73
Net earnings per share - diluted:
Common Stock	0.65	0.36	1.00	0.69
Class B Common Stock [Member]
Net earnings per share - basic:
Common Stock	0.62	0.34	0.95	0.66
Net earnings per share - diluted:
Common Stock	$ 0.61	$ 0.33	$ 0.93	$ 0.64