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Relationships with Managers - Footnotes (Details) - USD ($)				1 Months Ended					5 Months Ended	6 Months Ended	8 Months Ended	9 Months Ended	11 Months Ended	12 Months Ended				36 Months Ended	48 Months Ended
	Sep. 01, 2017	Jul. 01, 2017	Apr. 30, 2016	Sep. 30, 2021	May 31, 2021	May 31, 2018	Jul. 31, 2017	May 31, 2016	Dec. 31, 2017	Jun. 30, 2017	Aug. 31, 2017	Sep. 30, 2017	Nov. 30, 2017	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Jan. 31, 2021	Sep. 30, 2021
Atlanta Alpharetta Marriott | Marriott
Real Estate Properties [Line Items]
Incentive management fee (as a percentage of operating profit)																	25.00%
Bethesda Marriott Suites | Marriott
Real Estate Properties [Line Items]
Incentive management fee (as a percentage of operating profit)																	50.00%
FF&E reserve contributions as a percentage of gross revenue, contribution percentage reduced (as a percent)																	1.00%
Operating profits exceeds owner's priority																	$ 4,400,000
Chicago Marriott Downtown | Marriott
Real Estate Properties [Line Items]
Base management fee (as a percent)												3.00%
Incentive management fee (as a percentage of operating profit)																	18.00%
Operating profits exceeds owner's priority																	$ 0
Calculated as net operating income before incentive management fees (as a percent)																	18.00%
Courtyard Denver Downtown | Sage Hospitality
Real Estate Properties [Line Items]
Incentive management fee (as a percentage of operating profit)																	10.00%
Base management fee as a percent of gross revenue																	1.50%
Base management fee as a percent of gross operating profit																	1.50%
Courtyard Manhattan / Midtown East | HEI Hotels and Resorts
Real Estate Properties [Line Items]
Incentive management fee (as a percentage of operating profit)																	15.00%
Base management fee as a percent of gross revenue							5.00%		1.50%
The Gwen Chicago | HEI Hotels and Resorts
Real Estate Properties [Line Items]
Incentive management fee (as a percentage of operating profit)																	15.00%
Hilton Burlington | Interstate Hotels and Resorts
Real Estate Properties [Line Items]
Incentive management fee (as a percentage of operating profit)																	10.00%
Property management fee percent fee of gross revenue, capped percentage																	2.50%
Hotel Rex | Joie de Vivre Hotels
Real Estate Properties [Line Items]
Base management fee (as a percent)											3.00%
Incentive management fee (as a percentage of operating profit)																	15.00%
Lexington Hotel New York Tenant Leases | Highgate Hotels
Real Estate Properties [Line Items]
Incentive management fee (as a percentage of operating profit)																	20.00%
Base management fee reduction (as a percent)										2.00%
Additional base management fee (as a percent)		3.00%
Renaissance Charleston | Marriott
Real Estate Properties [Line Items]
Incentive management fee (as a percentage of operating profit)																	20.00%
Additional base management fee (as a percent)	3.50%
Salt Lake City Marriott Downtown | Marriott
Real Estate Properties [Line Items]
Incentive management fee (as a percentage of operating profit)																	20.00%
Base management fee reduction (as a percent)			3.00%					1.50%
L'Auberge de Sedona & Orchards Inn | Two Roads Hospitality
Real Estate Properties [Line Items]
Base management fee as a percent of gross revenue													2.45%
Scenario, Forecast | Atlanta Alpharetta Marriott | Marriott
Real Estate Properties [Line Items]
Base management fee (as a percent)																		2.00%
Scenario, Forecast | Chicago Marriott Downtown | Marriott
Real Estate Properties [Line Items]
Base management fee (as a percent)				3.00%															2.00%
Scenario, Forecast | Courtyard Manhattan / Midtown East | HEI Hotels and Resorts
Real Estate Properties [Line Items]
Base management fee as a percent of gross revenue																1.75%
Scenario, Forecast | The Gwen Chicago | HEI Hotels and Resorts
Real Estate Properties [Line Items]
Base management fee (as a percent)																2.25%
Scenario, Forecast | Salt Lake City Marriott Downtown | Marriott
Real Estate Properties [Line Items]
Additional base management fee (as a percent)					3.00%	2.00%
Scenario, Forecast | L'Auberge de Sedona & Orchards Inn | Two Roads Hospitality
Real Estate Properties [Line Items]
Base management fee (as a percent)														1.50%	1.00%

X

- Definition

The specified level of return on invested capital (referred to as the owner's priority) which must be exceeded before the furniture, fixtures and equipment reserve contribution percentage reverts to contractual levels.

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- Definition

Base Management Fee Of Two Point Five Percentage of Gross Operating Profit

+ References

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- Definition

Base management fee reduction, percentage

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- Definition

Base Management Fee of One Point Five Percentage Of Gross Revenue

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- Definition

The percentage to which the furniture, fixtures and equipment reserve contribution percentage is reduced until a specified level of return on invested capital (referred to as the owner's priority) is achieved by the reporting entity.

+ References

No definition available.

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- Definition

Incentive Management Fee Percentage Of Operating Profit

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- Definition

Percentage of Net Operating Income Before Incentive Management Fees

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- Definition

Property Management Fee, Additional Percent Fee

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- Definition

Property Management Fee Percent Fee Of Gross Revenue, Capped Percentage

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- Definition

The percentage charged for managing real estate properties.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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