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Borrowings (Cinema 1, 2, 3 Term Loan) (Narrative) (Details) $ in Thousands |  |  | 12 Months Ended
--- | --- | --- | ---
Mar. 13, 2020 USD ($) item | Aug. 31, 2016 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Debt Instrument [Line Items] |  |  |  |
Contractual facility |  |  | $ 248,948 | $ 300,449
Sutton Hill Properties, LLC [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Ownership percentage by parent |  |  | 75.00% |
US Cinema 1, 2, 3 Term Loan [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Contractual facility | $ 25,000 | $ 20,000 | $ 24,039 | $ 24,625
Interest rate | 4.25% | 3.25% |  |
Line of credit facility, maximum borrowing capacity |  | $ 20,000 |  |
Number of extension options | item | 2 |  |  |
Extension period | 6 months | 12 months |  |
Maturity date |  |  | Apr. 01, 2022 | Apr. 01, 2022
US Cinema 1, 2, 3 Term Loan [Member] | Sutton Hill Properties, LLC [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Ownership percentage by parent |  |  | 75.00% |
Santander Bank [Member] | US Cinema 1, 2, 3 Term Loan [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Contractual facility |  | $ 15,000 |  |

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