General - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended	9 Months Ended
	Sep. 26, 2024	Sep. 28, 2023	Jun. 27, 2024	Sep. 26, 2024	Sep. 28, 2023	Dec. 28, 2023
Summary of Significant Accounting Policies [Line Items]
Depreciation	$ 17,277,000	$ 19,150,000		$ 49,992,000	$ 51,004,000
Goodwill, impairment loss				$ 0	0
Percentage of cash dividends				110.00%
Cash and cash equivalents	28,415,000			$ 28,415,000		$ 55,589,000
Senior notes	160,000,000			160,000,000		70,000,000
Convertible senior notes	13,649,000			13,649,000		100,050,000
Deferred revenue	34,463,000			34,463,000		38,034,000
Contract assets	0			0		0
Deferred revenue, revenue recognized				17,208,000	14,545,000
Theatres | Operating Segments
Summary of Significant Accounting Policies [Line Items]
Remaining performance obligation related to gift cards	14,181,000			14,181,000
Hotels/ Resorts | Operating Segments
Summary of Significant Accounting Policies [Line Items]
Remaining performance obligation related to hotels gift cards	4,074,000			$ 4,074,000
Expected period for revenue from non-redeemed gift cards				2 years
Advanced Sale Of Tickets
Summary of Significant Accounting Policies [Line Items]
Remaining performance obligation, amount	2,031,000			$ 2,031,000
Expected period for redeemed revenue from advanced tickets and gift cards sales occurred				2 years
Level 3
Summary of Significant Accounting Policies [Line Items]
Impairment of fixed assets		684,000	$ 472,000
Impaired assets		$ 3,040,000	$ 0		$ 3,040,000
Level 3 | Recurring
Summary of Significant Accounting Policies [Line Items]
Fair value, asset (liability)	0			$ 0		0
Level 1
Summary of Significant Accounting Policies [Line Items]
Trading securities, fair value	7,332,000			7,332,000		5,364,000
Level 1 | Money Market Funds
Summary of Significant Accounting Policies [Line Items]
Cash and cash equivalents	15,014,000			15,014,000		37,018,000
Level 2
Summary of Significant Accounting Policies [Line Items]
Senior notes	160,917,000			160,917,000
Level 2 | Convertible Debt
Summary of Significant Accounting Policies [Line Items]
Debt instrument, fair value	20,183,000			20,183,000
Level 2 | Recurring
Summary of Significant Accounting Policies [Line Items]
Fair value, asset (liability)	$ 0			$ 0		$ 0