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Description of the Business and Summary of Significant Accounting Policies - Ownership in Joint Ventures (Details) | Dec. 31, 2018 | Mar. 31, 2018 | Mar. 31, 2016
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Gaylord Rockies [Member] |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Equity interest (as a percent) | 61.20% |  | 35.00%
Opry City Stage [Member] |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Equity interest (as a percent) |  | 50.00% |

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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 + Details
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