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Liquidity And Impairment Assessment (Narrative) (Details) - USD ($) |  |  | 1 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
May 21, 2025 | Feb. 05, 2025 | Jan. 31, 2025 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024 | Dec. 31, 2023
Liquidity And Impairment Assessment [Line Items] |  |  |  |  |  |  |
Borrowings due |  |  |  | $ 171,613,000 |  | $ 201,826,000 |
Debt current |  |  |  | 16,500,000 |  |  |
Cash and cash equivalents, Book Value |  |  |  | 10,548,000 | $ 11,483,000 | 15,082,000 | $ 15,441,000
Working capital |  |  |  | (92,700,000) |  |  |
Impairment charges against sites |  |  |  | 0 |  |  |
Repayment of long-term borrowings |  |  |  | 35,029,000 | $ 13,381,000 |  |
Westpac Bank Corporate Credit Facility [Member] |  |  |  |  |  |  |
Liquidity And Impairment Assessment [Line Items] |  |  |  |  |  |  |
Borrowings due |  |  |  |  |  | 10,543,000 |
Repayment of long-term borrowings |  |  | $ 10,700,000 |  |  |  |
Bank Of America Credit Facility [Member] |  |  |  |  |  |  |
Liquidity And Impairment Assessment [Line Items] |  |  |  |  |  |  |
Borrowings due |  | $ 8,700,000 |  | $ 6,700,000 |  | 14,699,000 |
Repayment of long-term borrowings |  | $ 6,100,000 |  |  |  |  |
NAB Bridge Facility [Member] |  |  |  |  |  |  |
Liquidity And Impairment Assessment [Line Items] |  |  |  |  |  |  |
Borrowings due |  |  |  |  |  | 12,361,000 |
Repayment of long-term borrowings | $ 12,900,000 |  |  |  |  |  |
Debt extension period |  |  |  | 5 years |  |  |
US Cinema 1, 2, 3 Term Loan [Member] |  |  |  |  |  |  |
Liquidity And Impairment Assessment [Line Items] |  |  |  |  |  |  |
Borrowings due |  |  |  | $ 20,442,000 |  | $ 20,594,000 |
Nine Property Assets [Member] |  |  |  |  |  |  |
Liquidity And Impairment Assessment [Line Items] |  |  |  |  |  |  |
Sale price |  |  |  | $ 201,500,000 |  |  |
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Cannon Park ETC [Member] |  |  |  |  |  |  |
Liquidity And Impairment Assessment [Line Items] |  |  |  |  |  |  |
Sale price | 20,700,000 |  |  |  |  |  |
Core Facility [Member] |  |  |  |  |  |  |
Liquidity And Impairment Assessment [Line Items] |  |  |  |  |  |  |
Repayment of long-term borrowings | $ 970,000 |  |  |  |  |  |

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