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Basis of Presentation - Joint Venture Interests Acquired - Impairment (Details) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Sep. 30, 2018 | Sep. 30, 2018 | Sep. 30, 2018
Asset Impairment Charges [Abstract] |  |  |
Impairment and other charges |  | $ 4,540 | $ 4,540
Opry City Stage [Member] |  |  |
Asset Impairment Charges [Abstract] |  |  |
Impairment and other charges | $ 4,500 |  |

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