Business Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 24, 2020	Sep. 30, 2021	Sep. 24, 2020
Segment Reporting Information [Line Items]
Revenues	$ 145,862	$ 33,591	$ 289,196	$ 200,984
Operating income (loss)	6,273	(47,987)	(55,498)	(123,249)
Depreciation and amortization	17,730	18,690	54,203	56,568
Theatres [Member]
Segment Reporting Information [Line Items]
Revenues	79,996	7,354	154,859	118,414
Operating income (loss)	(2,604)	(37,174)	(46,458)	(78,788)
Depreciation and amortization	12,636	13,353	38,807	40,245
Hotels/Resorts [Member]
Segment Reporting Information [Line Items]
Revenues	65,803	26,178	134,079	82,253
Operating income (loss)	13,458	(6,925)	5,511	(32,459)
Depreciation and amortization	5,018	5,210	15,192	15,955
Corporate Items [Member]
Segment Reporting Information [Line Items]
Revenues	63	59	258	317
Operating income (loss)	(4,581)	(3,888)	(14,551)	(12,002)
Depreciation and amortization	$ 76	$ 127	$ 204	$ 368