Impact of COVID-19 Pandemic And Liquidity (Narrative) (Details) $ in Thousands, $ in Millions, $ in Millions				3 Months Ended			6 Months Ended			7 Months Ended	12 Months Ended
	Jul. 01, 2021 item	May 07, 2021 NZD ($)	Mar. 06, 2020 USD ($)	Jun. 30, 2021 USD ($) item	Jun. 30, 2021 NZD ($)	Jun. 30, 2021 AUD ($)	Jun. 30, 2021 USD ($) item		Jun. 30, 2020 USD ($)	Jul. 31, 2021 item	Dec. 31, 2020 USD ($)		Jun. 30, 2021 NZD ($) item
Impact Of Covid [Line Items]
Contractual Facility							$ 274,696				$ 300,449
Impairment of long-lived assets											217
Proceeds from sale of assets							141,363
Repayment of long-term borrowings							$ 75,257		$ 22,311
Shadow View Land And Farming, LLC [Member]
Impact Of Covid [Line Items]
Ownership percentage by noncontrolling interest				50.00%			50.00%						50.00%
Bank Of America Credit Facility [Member]
Impact Of Covid [Line Items]
Contractual Facility			$ 55,000				$ 55,000				55,000
44 Union Square [Member]
Impact Of Covid [Line Items]
Proceeds from debt							43,000
Westpac Bank Corporate Credit Facility [Member]
Impact Of Covid [Line Items]
Contractual Facility							11,165	[1]			$ 23,021	[2]
Repayment of notes payable				$ 11,200	$ 16.0
Book value				22,400			22,400						$ 32.0
Repayment of long-term borrowings		$ 16.0
NAB Corporate Loan Facility [Member]
Impact Of Covid [Line Items]
Repayment of notes payable				15,800		$ 20.5
Book value				76,800			76,800
Manukau, New Zealand And Coachella, California [Member]
Impact Of Covid [Line Items]
Proceeds from sale of assets				$ 179,100
Manukau, New Zealand And Coachella, California [Member] | Shadow View Land And Farming, LLC [Member]
Impact Of Covid [Line Items]
Proceeds from sale of assets							$ 136,100
Ownership percentage by noncontrolling interest				50.00%			50.00%						50.00%
COVID-19 [Member]
Impact Of Covid [Line Items]
Number of cinemas re-opened | item										57
Number of cinemas | item										62
COVID-19 [Member] | Australia [Member]
Impact Of Covid [Line Items]
Number of cinemas closed | item	12
COVID-19 [Member] | United States [Member]
Impact Of Covid [Line Items]
Number of cinemas re-opened | item							20
Number of cinemas | item				24			24						24

[1] The contractual facilities and outstanding balances of the foreign currency denominated borrowings were translated into U.S. dollars based on the applicable exchange rates as of June 30, 2021.

[2] The contractual facilities and outstanding balances of the foreign currency denominated borrowings were translated into U.S. dollars based on the applicable exchange rates as of December 31, 2020.