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Commitments and Contingencies - Additional Information (Detail) $ in Millions | 12 Months Ended
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Dec. 31, 2017 USD ($) a | Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($)
Contingencies And Commitments [Line Items] |  |  |
Rental expense related to continuing operations for operating leases | $ 12.5 | $ 12.4 | $ 12.3
Osceola County [Member] |  |  |
Contingencies And Commitments [Line Items] |  |  |
Operating lease agreement period | 75 years |  |
Land area covered under operating lease agreement in acres | a | 65.3 |  |
Annual base payment for operating lease | $ 4.1 |  |
Percentage of escalation of base rent | 3.00% |  |
Annual base lease expense for operating lease | $ 9.4 | 9.4 | 9.4
Expiration date of lease under extension | Jan. 31, 2101 |  |
Contingent rentals | $ 2.2 | 2.2 | 2.0
Non cash lease expense | $ 5.1 | $ 5.2 | $ 5.4

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- Definition Annual base lease expense recognized on a straight-line basis. + References No definition available. + Details
Name: | rhp_AnnualBaseLeaseExpenseForOperatingLease
Namespace Prefix: | rhp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Contingencies And Commitments [Line Items] + References No definition available. + Details
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- Definition Expiration date of lease if lease is extended after its original termination date. + References No definition available. + Details
Name: | rhp_ExpirationDateOfLeaseUnderExtension
Namespace Prefix: | rhp_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Land area in acres under lease. + References No definition available. + Details
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Namespace Prefix: | rhp_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | duration

X
- Definition Noncash expense recorded associated with straight-line lease liability. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Percentage of annual escalation of base rent. + References No definition available. + Details
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Data Type: | num:percentItemType
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- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References No definition available. + Details
Name: | us-gaap_LeaseAndRentalExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980 + Details
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Period Type: | duration

X
- Definition The increases or decreases in lease payments that result from changes occurring after the inception of the lease in the factors (other than the passage of time) on which lease payments are based, except that any escalation of minimum lease payments relating to increases in construction or acquisition cost of the leased property or for increases in some measure of cost or value during the construction or preconstruction period, are excluded from contingent rentals. Contingent rentals also may include amounts for which the triggering events have not yet occurred or the specified targets for which have not yet been achieved (such as sales based percentage rent), but which events are considered probable of occurring or which specified targets are considered probable of being achieved. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41499-112717 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 3) -URI http://asc.fasb.org/extlink&oid=82846649&loc=d3e38371-112697 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 40 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=77895616&loc=d3e36728-112689 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 25 -Paragraph 35 -URI http://asc.fasb.org/extlink&oid=77910666&loc=d3e35050-112683 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84164451&loc=d3e36991-112694 + Details
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- Definition This element represents the payments that the lessee is obligated to make or can be required to make in connection with a property under the terms of an agreement classified as an operating lease, excluding contingent rentals and a guarantee by the lessee of the lessor's debt and the lessee's obligation to pay (apart from the rental payments) executory costs such as insurance, maintenance, and taxes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41499-112717 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 25 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77910348&loc=d3e34039-112682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 3) -URI http://asc.fasb.org/extlink&oid=82846649&loc=d3e38371-112697 + Details
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- Details
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