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Description of the Business and Summary of Significant Accounting Policies - Joint Venture Interests Acquired - Ownership Percentages (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2018 | Jun. 30, 2018
Opry City Stage [Member] |  |
Business Combination, Step Acquisition [Abstract] |  |
Impairment charges | $ 22.6 |
Opry City Stage [Member] |  |
Business Combination, Description [Abstract] |  |
Interest acquired (as a percent) |  | 50.00%
Business Combination, Step Acquisition [Abstract] |  |
Equity interest immediately before the acquisition (as a percent) |  | 50.00%
Total equity interest (as a percent) |  | 100.00%

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