Borrowings (Summary Of Borrowings) (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2025	Dec. 31, 2024	Feb. 05, 2025
Debt Instrument [Line Items]
Contractual Facility	$ 174,997	$ 210,572
Balance Gross	172,638	202,713
Balance Net	171,613	201,826
Deferred financing costs, net	$ 1,000	$ 900
Minetta And Orpheum Theatres Loan [Member]
Debt Instrument [Line Items]
Maturity Date	Jun. 01, 2026	Jun. 01, 2025
Contractual Facility	$ 7,117	$ 7,464
Balance Gross	7,117	7,464
Balance Net	$ 7,101	$ 7,446
Stated Interest Rate	7.00%	7.00%
Effective Interest Rate	7.00%	7.00%
Bank Of America Credit Facility [Member]
Debt Instrument [Line Items]
Maturity Date	May 18, 2026	Aug. 18, 2025
Contractual Facility	$ 6,700	$ 14,750
Balance Gross	6,700	14,750
Balance Net	$ 6,700	$ 14,699	$ 8,700
Stated Interest Rate	11.25%	10.50%
Effective Interest Rate	11.25%	10.50%
US Cinema 1, 2, 3 Term Loan [Member]
Debt Instrument [Line Items]
Maturity Date	Oct. 01, 2025	Apr. 01, 2025
Contractual Facility	$ 20,442	$ 20,682
Balance Gross	20,442	20,682
Balance Net	$ 20,442	$ 20,594
Stated Interest Rate	9.32%	9.57%
Effective Interest Rate	9.32%	9.57%
Union Square Construction Financing [Member]
Debt Instrument [Line Items]
Maturity Date	Nov. 06, 2026	May 06, 2025
Contractual Facility	$ 49,000	$ 55,000
Balance Gross	46,641	47,141
Balance Net	$ 46,047	$ 47,049
Stated Interest Rate	11.35%	11.78%
Effective Interest Rate	11.35%	11.78%
Loan extension period		1 year
Trust Preferred Securities [Member]
Debt Instrument [Line Items]
Maturity Date	Apr. 30, 2027	Apr. 30, 2027
Contractual Facility	$ 27,913	$ 27,913
Balance Gross	27,913	27,913
Balance Net	$ 27,561	$ 27,394
Stated Interest Rate	8.57%	8.85%
Effective Interest Rate	8.57%	8.85%
NAB Australian Corporate Term Loan [Member]
Debt Instrument [Line Items]
Maturity Date	Jul. 31, 2026	Jul. 31, 2026
Contractual Facility	$ 63,825	$ 61,850
Balance Gross	63,825	61,850
Balance Net	$ 63,762	$ 61,740
Stated Interest Rate	5.35%	6.12%
Effective Interest Rate	5.35%	6.12%
NAB Bridge Facility [Member]
Debt Instrument [Line Items]
Maturity Date		Apr. 30, 2025
Contractual Facility		$ 12,370
Balance Gross		12,370
Balance Net		$ 12,361
Stated Interest Rate		6.16%
Effective Interest Rate		6.16%
Westpac Bank Corporate Credit Facility [Member]
Debt Instrument [Line Items]
Maturity Date		Mar. 31, 2025
Contractual Facility		$ 10,543
Balance Gross		10,543
Balance Net		$ 10,543
Stated Interest Rate		6.95%
Effective Interest Rate		6.95%