General - Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 24, 2020	Sep. 26, 2019	Sep. 24, 2020	Sep. 26, 2019
Summary of Significant Accounting Policies [Line Items]
Cost reimbursements	$ 3,225	$ 7,431	$ 13,916	$ 27,979
Total revenues	33,591	211,462	200,984	614,001
Theatre admissions [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	3,118	69,753	58,667	211,777
Rooms [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	9,772	34,185	27,618	81,317
Theatre concessions [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	3,243	57,051	50,277	172,126
Food and beverage [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	5,420	20,170	19,620	54,568
Other revenues [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	8,813	22,872	30,886	66,234
Theatres Segment [Member]
Summary of Significant Accounting Policies [Line Items]
Cost reimbursements	59	217	276	646
Total revenues	7,354	136,802	118,414	414,074
Theatres Segment [Member] | Theatre admissions [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	3,118	69,753	58,667	211,777
Theatres Segment [Member] | Theatre concessions [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	3,243	57,051	50,277	172,126
Theatres Segment [Member] | Other revenues [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	934	9,781	9,194	29,525
Hotels or Resorts [Member]
Summary of Significant Accounting Policies [Line Items]
Cost reimbursements	3,166	7,214	13,640	27,333
Total revenues	26,178	74,572	82,253	199,604
Hotels or Resorts [Member] | Rooms [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	9,772	34,185	27,618	81,317
Hotels or Resorts [Member] | Food and beverage [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	5,420	20,170	19,620	54,568
Hotels or Resorts [Member] | Other revenues [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	7,820	13,003	21,375	36,386
Corporate Segment [Member]
Summary of Significant Accounting Policies [Line Items]
Total revenues	59	88	317	323
Corporate Segment [Member] | Other revenues [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	$ 59	$ 88	$ 317	$ 323