Investment in Hotel Properties Schedule of Investment in Hotel Properties (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Investments [Abstract]
Land	$ 730,735us-gaap_Land	$ 601,962us-gaap_Land
Buildings and improvements	3,595,465us-gaap_BuildingsAndImprovementsGross	3,295,233us-gaap_BuildingsAndImprovementsGross
Furniture, fixtures and equipment	659,946us-gaap_FixturesAndEquipmentGross	596,879us-gaap_FixturesAndEquipmentGross
Investment in hotel properties, gross	4,986,146	4,494,074
Accumulated depreciation	(1,108,270)	(1,065,518)
Investment in hotel properties, net	$ 3,877,876us-gaap_RealEstateInvestmentPropertyNet	$ 3,428,556us-gaap_RealEstateInvestmentPropertyNet

Amount before accumulated depreciation of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

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-Section 45

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Amount before accumulated depreciation of fixtures and equipment. Includes, but is not limited to, machinery, equipment, and engines.

+ References

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- Definition

Amount before accumulated depletion of real estate held for productive use, excluding land held for sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section 45

-Paragraph 4

-Subparagraph (e)

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.13)

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- Definition

The cumulative amount of depreciation for real estate property held for investment purposes.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

-Topic 944

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-Subparagraph (SX 210.7-03.1(3))

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

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Amount of real estate investment property which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments.

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Amount of real estate investment property, net of accumulated depreciation, which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments.

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