General - Narrative (Details)	3 Months Ended		9 Months Ended
	Sep. 28, 2023 USD ($) theatre	Sep. 29, 2022 USD ($)	Sep. 28, 2023 USD ($) theatre	Sep. 29, 2022 USD ($) shares	Dec. 29, 2022 USD ($)
Summary of Significant Accounting Policies [Line Items]
Ownership interest in joint ventures	50.00%		50.00%
Depreciation	$ 19,150,000	$ 16,444,000	$ 51,004,000	$ 50,411,000
Percentage of cash dividends			110.00%
Senior notes	70,000,000		$ 70,000,000		$ 80,000,000
Convertible senior notes	100,050,000		100,050,000		100,050,000
Deferred revenue	36,934,000		36,934,000		37,046,000
Contract assets	0		0		0
Deferred revenue, revenue recognized			14,545,000	$ 9,448,000
Remaining performance obligation related to hotels gift cards	$ 3,707,000		$ 3,707,000
Disposal Group, Held-for-Sale, Not Discontinued Operations
Summary of Significant Accounting Policies [Line Items]
Number Of closed theatres | theatre	1		1
Theatres
Summary of Significant Accounting Policies [Line Items]
Remaining performance obligation related to gift cards	$ 15,317,000		$ 15,317,000
Hotels/Resorts
Summary of Significant Accounting Policies [Line Items]
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	1,882,000		$ 1,882,000
Expected period for redeemed revenue from advanced tickets and gift cards sales occurred			2 years
Level 1
Summary of Significant Accounting Policies [Line Items]
Trading securities, fair value	4,964,000		$ 4,964,000		3,932,000
Level 1 | Money Market Funds
Summary of Significant Accounting Policies [Line Items]
Investments, fair value	27,003,000		27,003,000		6,000,000
Level 2
Summary of Significant Accounting Policies [Line Items]
Fair value of the interest rate swaps, assets					108,000
Senior notes	62,406,000		62,406,000
Level 2 | Convertible Debt
Summary of Significant Accounting Policies [Line Items]
Debt instrument, fair value	154,936,000		154,936,000
Level 3
Summary of Significant Accounting Policies [Line Items]
Impairment of fixed assets			684,000
Impaired assets, fair value	3,040,000		3,040,000
Level 3 | Recurring
Summary of Significant Accounting Policies [Line Items]
Fair value, asset (liability)	$ 0		$ 0		$ 0
Common Stock
Summary of Significant Accounting Policies [Line Items]
Shares related to the convertible notes were excluded from the computation of diluted earnings per share (in shares) | shares				76,714
Shares Related to Convertible Notes
Summary of Significant Accounting Policies [Line Items]
Shares related to the convertible notes were excluded from the computation of diluted earnings per share (in shares) | shares				9,111,846