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Summary of Significant Accounting Policies - Narrative (Details)	3 Months Ended	12 Months Ended
	Sep. 30, 2018 USD ($)	Dec. 31, 2018 USD ($) Hotel	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Jan. 01, 2019 USD ($)
Property, Plant and Equipment [Line Items]
Proceeds from insurance settlement, property and business interruption		$ 85,000,000	$ 10,000,000
Gain on business interruption insurance		19,379,000	4,051,000	$ 0
Estimated recovery of impairment losses from insurance		0	40,784,000	0
Insured event, gain		$ 1,724,000	0	$ 0
Number of properties acquired | Hotel		3
Income Tax Uncertainties [Abstract]
Unrecognized tax benefits		$ 0	0
Assets		3,197,580,000	3,100,858,000
Liabilities		$ 1,306,987,000	1,267,213,000
Minimum | Buildings, Land Improvements, and Building Improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life (in years)		5 years
Minimum | Furniture, Fixtures and Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life (in years)		1 year
Maximum | Buildings, Land Improvements, and Building Improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life (in years)		40 years
Maximum | Furniture, Fixtures and Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life (in years)		10 years
Havana Cabana Key West
Property, Plant and Equipment [Line Items]
Proceeds from insurance settlement, property and business interruption	$ 8,300,000
Gain on business interruption insurance		$ 2,137,000	923,000
Insured event, gain		1,700,000
The Lodge at Sonoma
Property, Plant and Equipment [Line Items]
Proceeds from insurance settlement, business interruption	$ 1,300,000
Gain on business interruption insurance		$ 1,152,000	$ 0
Subsequent Event | Scenario, Forecast | Accounting Standards Update 2016-02 | Minimum
Income Tax Uncertainties [Abstract]
Assets					$ 95,000,000
Liabilities					95,000,000
Subsequent Event | Scenario, Forecast | Accounting Standards Update 2016-02 | Maximum
Income Tax Uncertainties [Abstract]
Assets					125,000,000
Liabilities					$ 125,000,000

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