Business Segment Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 26, 2019	Dec. 27, 2018
Segment Reporting Information [Line Items]
Revenues	$ 237,688,000	$ 820,863,000	$ 707,120,000
Operating income (loss)	(178,422,000)	68,191,000	83,189,000
Depreciation and amortization	75,052,000	72,277,000	61,342,000
Assets	1,254,178,000	1,359,186,000	989,331,000
Capital expenditures and acquisitions	21,363,000	94,167,000	58,660,000
Theatres [Member]
Segment Reporting Information [Line Items]
Revenues	132,624,000	557,080,000	446,804,000
Operating income (loss)	(121,429,000)	76,903,000	88,790,000
Depreciation and amortization	53,460,000	51,202,000	38,760,000
Assets	871,655,000	953,299,000	624,512,000
Capital expenditures and acquisitions	15,828,000	61,604,000	43,568,000
Hotels/Resorts [Member]
Segment Reporting Information [Line Items]
Revenues	104,638,000	263,350,000	259,892,000
Operating income (loss)	(43,885,000)	10,050,000	12,480,000
Depreciation and amortization	21,096,000	20,430,000	22,229,000
Assets	309,320,000	337,206,000	306,162,000
Capital expenditures and acquisitions	4,669,000	31,783,000	14,931,000
Corporate Items [Member]
Segment Reporting Information [Line Items]
Revenues	426,000	433,000	424,000
Operating income (loss)	(13,108,000)	(18,762,000)	(18,081,000)
Depreciation and amortization	496,000	645,000	353,000
Assets	73,203,000	68,681,000	58,657,000
Capital expenditures and acquisitions	$ 866,000	$ 780,000	$ 161,000