General - Revenue Recognition (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 26, 2020	Mar. 28, 2019
Summary of Significant Accounting Policies [Line Items]
Cost reimbursements		$ 8,756	$ 8,365
Total revenues		159,460	170,039
Theatre admissions [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax		55,395	58,969
Rooms [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax		16,989	18,938
Theatre concessions [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax		45,930	47,155
Food and beverage [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax		13,614	15,783
Other revenues [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	[1]	18,776	20,829
Theatres Segment [Member]
Summary of Significant Accounting Policies [Line Items]
Cost reimbursements		183	192
Total revenues		109,211	114,885
Theatres Segment [Member] | Theatre admissions [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax		55,395	58,969
Theatres Segment [Member] | Theatre concessions [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax		45,930	47,155
Theatres Segment [Member] | Other revenues [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	[1]	7,703	8,569
Hotels or Resorts [Member]
Summary of Significant Accounting Policies [Line Items]
Cost reimbursements		8,573	8,173
Total revenues		50,160	55,061
Hotels or Resorts [Member] | Rooms [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax		16,989	18,938
Hotels or Resorts [Member] | Food and beverage [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax		13,614	15,783
Hotels or Resorts [Member] | Other revenues [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	[1]	10,984	12,167
Corporate Segment [Member]
Summary of Significant Accounting Policies [Line Items]
Total revenues		89	93
Corporate Segment [Member] | Other revenues [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	[1]	$ 89	$ 93

[1] Included in other revenues is an immaterial amount related to rental income that is not considered revenue from contracts with customers.