Borrowings (Summary Of Borrowings) (Details) $ in Thousands, $ in Millions	6 Months Ended		12 Months Ended
	Jun. 30, 2024 USD ($)	Jun. 30, 2024 NZD ($)	Dec. 31, 2023 USD ($)
Debt Instrument [Line Items]
Contractual Facility	$ 218,277		$ 218,159
Balance Gross	210,418		210,300
Balance Net	209,229		208,847
Deferred financing costs, net	$ 1,200		$ 1,500
Trust Preferred Securities [Member]
Debt Instrument [Line Items]
Maturity Date	Apr. 30, 2027	Apr. 30, 2027	Apr. 30, 2027
Contractual Facility	$ 27,913		$ 27,913
Balance Gross	27,913		27,913
Balance Net	$ 27,283		$ 27,172
Stated Interest Rate	9.59%	9.59%	9.65%
Effective Interest Rate	9.59%		9.65%
Bank Of America Credit Facility [Member]
Debt Instrument [Line Items]
Maturity Date	Aug. 18, 2025	Aug. 18, 2025	Sep. 04, 2024
Contractual Facility	$ 17,750		$ 20,200
Balance Gross	17,750		20,200
Balance Net	$ 17,680		$ 20,080
Stated Interest Rate	11.50%	11.50%	11.00%
Effective Interest Rate	11.50%		11.00%
US Cinema 1, 2, 3 Term Loan [Member]
Debt Instrument [Line Items]
Maturity Date	Oct. 01, 2024	Oct. 01, 2024	Oct. 01, 2024
Contractual Facility	$ 20,855		$ 21,008
Balance Gross	20,855		21,008
Balance Net	$ 20,770		$ 20,780
Stated Interest Rate	8.83%	8.83%	8.84%
Effective Interest Rate	8.83%		8.84%
Minetta And Orpheum Theatres Loan [Member]
Debt Instrument [Line Items]
Maturity Date	Jun. 01, 2024	Jun. 01, 2024	Jun. 01, 2024
Contractual Facility	$ 8,000		$ 8,000
Balance Gross	8,000		8,000
Balance Net	$ 7,984		$ 8,000
Stated Interest Rate	7.00%	7.00%	8.34%
Effective Interest Rate	7.00%		8.34%
U.S. Corporate Office Term Loan [Member]
Debt Instrument [Line Items]
Maturity Date			Jan. 01, 2027
Contractual Facility	$ 8,400		$ 8,401
Balance Gross			8,401
Balance Net			$ 8,356
Union Square Construction Financing [Member]
Debt Instrument [Line Items]
Maturity Date	May 06, 2025	May 06, 2025	May 06, 2024
Contractual Facility	$ 55,000		$ 55,000
Balance Gross	47,141		47,141
Balance Net	$ 46,938		$ 46,925
Stated Interest Rate	12.54%	12.54%	12.53%
Effective Interest Rate	12.54%		12.53%
Purchase Money Promissory Note [Member]
Debt Instrument [Line Items]
Maturity Date	Sep. 18, 2024	Sep. 18, 2024	Sep. 18, 2024
Contractual Facility	$ 198		$ 586
Balance Gross	198		586
Balance Net	$ 198		$ 586
Stated Interest Rate	5.00%	5.00%	5.00%
Effective Interest Rate	5.00%		5.00%
NAB Australian Corporate Term Loan [Member]
Debt Instrument [Line Items]
Maturity Date	Jul. 31, 2026	Jul. 31, 2026	Jul. 31, 2025
Contractual Facility	$ 66,770		$ 68,276
Balance Gross	66,770		68,276
Balance Net	$ 66,610		$ 68,173
Stated Interest Rate	6.09%	6.09%	6.11%
Effective Interest Rate	6.09%		6.11%
NAB Bridge Facility [Member]
Debt Instrument [Line Items]
Maturity Date	Mar. 31, 2025	Mar. 31, 2025
Contractual Facility	$ 13,354
Balance Gross	13,354
Balance Net	$ 13,329
Stated Interest Rate	6.12%	6.12%
Effective Interest Rate	6.12%
Westpac Bank Corporate Credit Facility [Member]
Debt Instrument [Line Items]
Maturity Date	Jan. 01, 2025	Jan. 01, 2025	Jan. 01, 2025
Contractual Facility	$ 8,437	$ 13.8	$ 8,775
Balance Gross	8,437		8,775
Balance Net	$ 8,437		$ 8,775
Stated Interest Rate	8.20%	8.20%	8.20%
Effective Interest Rate	8.20%		8.20%
Minimum [Member] | U.S. Corporate Office Term Loan [Member]
Debt Instrument [Line Items]
Stated Interest Rate			4.44%
Effective Interest Rate			4.44%
Maximum [Member] | U.S. Corporate Office Term Loan [Member]
Debt Instrument [Line Items]
Stated Interest Rate			4.64%
Effective Interest Rate			4.64%