Business Acquisition Number of Rooms Acquired.

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- Definition

Ground Leases Incremental Renewal Option Years

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- Definition

Ground Leases Renewal Option Years

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- Definition

Interest In Land Under Hotel

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- Definition

Number Of Hotel Rooms

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- Definition

Number of Properties Subject to Ground Leases, Number of Renewal Periods

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- Definition

Ownership of Undivided Interest, Percentage

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- Definition

Percentage of land on which the parking garage is constructed

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- Definition

Area of a real estate property.

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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.

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- Definition

Number of separate real estate development properties located on land subject to ground leases.

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- Definition

Cash payments to lessor's for use of assets under operating leases.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3536-108585

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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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Commitments and Contingencies - Narrative (Details) $ in Millions		12 Months Ended
	Feb. 28, 2017 room	Dec. 31, 2017 USD ($) ft² hotel renewal_term ground_lease	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Feb. 06, 2015 room
Real Estate Properties [Line Items]
Number of properties subject to ground leases (in hotels) \| hotel		5
Ground rent expense \| $		$ 10.2	$ 12.7	$ 15.1
Cash paid for ground rent \| $		$ 4.1	$ 7.0	$ 9.4
Bethesda Marriott Suites
Real Estate Properties [Line Items]
Number of renewal periods (in ones)		0
Courtyard Manhattan / Fifth Avenue
Real Estate Properties [Line Items]
Number of renewal periods (in ones)		1
Ground leases renewal option (in years)		49 years
Salt Lake City Marriott Downtown
Real Estate Properties [Line Items]
Number of properties subject to ground leases (in hotels) \| ground_lease		2
Interest in land under hotel (as a percent of ownership)		21.00%
Boston Westin
Real Estate Properties [Line Items]
Number of renewal periods (in ones)		0
Renaissance Worthington
Real Estate Properties [Line Items]
Number of properties subject to ground leases (in hotels) \| ground_lease		3
Number of renewal periods (in ones)		3
Ground leases renewal option (in years)		15 years
Percentage of land on which the parking garage is constructed		25.00%
JW Marriott Denver at Cherry Creek
Real Estate Properties [Line Items]
Number of renewal periods (in ones)		2
Ground leases renewal option (in years)		5 years
Area of real estate property \| ft²		5,500
Incremental renewal option (in years)		1 year
First Set of Renewal Options \| Shorebreak Hotel
Real Estate Properties [Line Items]
Number of renewal periods (in ones)		2
Ground leases renewal option (in years)		25 years
Second Set of Renewal Options \| Shorebreak Hotel
Real Estate Properties [Line Items]
Number of renewal periods (in ones)		1
Ground leases renewal option (in years)		24 years
Shorebreak Hotel
Real Estate Properties [Line Items]
Number of rooms acquired (in rooms) \| room					157
Orchards Inn Sedona
Real Estate Properties [Line Items]
Number of rooms \| room	28
Number of rooms acquired (in rooms) \| room	70
Long-Term Ground Lease \| Shorebreak Hotel
Real Estate Properties [Line Items]
Ownership of undivided interest (as a percent of ownership)		95.50%
Land Underlying the Hotel and Lease \| Shorebreak Hotel
Real Estate Properties [Line Items]
Interest in land under hotel (as a percent of ownership)		4.50%