General - Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 25, 2020	Jun. 27, 2019	Jun. 25, 2020	Jun. 27, 2019
Summary of Significant Accounting Policies [Line Items]
Cost reimbursements	$ 1,935	$ 12,183	$ 10,691	$ 20,548
Total revenues	7,933	232,500	167,393	402,539
Theatre admissions [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	154	83,055	55,549	142,024
Rooms [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	857	28,194	17,846	47,132
Theatre concessions [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	1,104	67,920	47,034	115,075
Food and beverage [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	586	18,615	14,200	34,398
Other revenues [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	3,297	22,533	22,073	43,362
Theatres Segment [Member]
Summary of Significant Accounting Policies [Line Items]
Cost reimbursements	34	237	217	429
Total revenues	1,849	162,387	111,060	277,272
Theatres Segment [Member] | Theatre admissions [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	154	83,055	55,549	142,024
Theatres Segment [Member] | Theatre concessions [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	1,104	67,920	47,034	115,075
Theatres Segment [Member] | Other revenues [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	557	11,175	8,260	19,744
Hotels or Resorts [Member]
Summary of Significant Accounting Policies [Line Items]
Cost reimbursements	1,901	11,946	10,474	20,119
Total revenues	5,915	69,971	56,075	125,032
Hotels or Resorts [Member] | Rooms [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	857	28,194	17,846	47,132
Hotels or Resorts [Member] | Food and beverage [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	586	18,615	14,200	34,398
Hotels or Resorts [Member] | Other revenues [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	2,571	11,216	13,555	23,383
Corporate Segment [Member]
Summary of Significant Accounting Policies [Line Items]
Total revenues	169	142	258	235
Corporate Segment [Member] | Other revenues [Member]
Summary of Significant Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	$ 169	$ 142	$ 258	$ 235