Asset impairment charges fair value note.

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Fair value inputs, estimated selling price.

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- Definition

Impaired hotels.

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No definition available.

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- Definition

Number of hotels held for sale.

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No definition available.

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Number of hotels sold.

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No definition available.

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Number of wholly owned hotels agreed to sell.

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No definition available.

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- Definition

Fair value portion of assets classified as held for sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19190-110258

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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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Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Market valuation of entity divided by revenue, used as an input to measure fair value.

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- Definition

Amount of gain (loss) on sale or disposal of property, plant and equipment assets, excluding oil and gas property and timber property.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
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Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.

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The difference between the carrying value and the sale price of real estate or properties that were intended to be sold or held for capital appreciation or rental income. This element refers to the gain (loss) included in earnings and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.

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The cash inflow from the sale of property, plant and equipment (capital expenditures), software, and other intangible assets.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Fair Value Measurements - Additional Information (Detail) $ in Thousands		2 Months Ended	3 Months Ended				12 Months Ended
	Feb. 28, 2017 USD ($)	Feb. 28, 2018 USD ($) Hotel	Dec. 31, 2017 USD ($) Hotel	Mar. 31, 2017 USD ($) Hotel	Mar. 31, 2016 USD ($) Hotel	Dec. 31, 2015 USD ($) Hotel	Dec. 31, 2017 USD ($) Hotel	Dec. 31, 2016 USD ($) Hotel	Dec. 31, 2015 USD ($) Hotel
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Proceeds from sale of assets							$ 32,620	$ 71,136	$ 37,576
Gain on sale of assets							$ 3,665	$ 4,908	$ (4,088)
Number of hotels held for sale \| Hotel							3	5	13
Gain on sale of assets							$ 1,180	$ 4,908	$ (4,533)
Subsequent Event [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Number of hotels sold \| Hotel		1
Proceeds from sale of assets		$ 4,400
24 Owned Hotels Held For Sale [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Number of hotels impaired \| Hotel						24		13	24
Impairment charge								$ 1,100	$ 42,500
Number of hotels sold \| Hotel						11		13	11
Proceeds from sale of assets						$ 34,100		$ 34,400	$ 34,100
24 Owned Hotels Held For Sale [Member] \| Minimum [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated selling prices									70,000
24 Owned Hotels Held For Sale [Member] \| Maximum [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated selling prices									75,000
1 Owned Restaurant Parcel [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Impairment charge									$ 1,600
Proceeds from sale of assets			$ 1,400
Gain on sale of assets			$ 300
50 Owned Hotels Held For Sale [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Number of hotels impaired \| Hotel					50
Impairment charge					$ 80,300			$ 1,600
Number of hotels sold \| Hotel					5		2	3
Proceeds from sale of assets	$ 4,100						$ 9,900	$ 11,900
Gain on sale of assets							1,400
Number of wholly owned hotels agreed to sell \| Hotel								6
Number of hotels held for sale \| Hotel					1			3
Gain on sale of assets								$ 300
50 Owned Hotels Held For Sale [Member] \| Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of assets held for sale								22,300
50 Owned Hotels Held For Sale [Member] \| Minimum [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Range of room revenues multiples					1.50
50 Owned Hotels Held For Sale [Member] \| Maximum [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Range of room revenues multiples					3.70
5 Owned Hotels [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Impairment charge								17,700
Estimated selling prices								$ 39,400
Number of wholly owned hotels agreed to sell \| Hotel								5
3 Owned Hotels [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Number of hotels sold \| Hotel								3
Proceeds from sale of assets								$ 22,000
Gain on sale of hotels								$ 4,600
2 Owned Hotels [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Number of hotels impaired \| Hotel								2
Impairment charge								$ 3,510
Estimated selling prices							$ 7,800
Number of hotels sold \| Hotel				2
Proceeds from sale of assets				$ 17,900
Number of wholly owned hotels agreed to sell \| Hotel							2
1 Owned Hotel [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Number of hotels sold \| Hotel							1
Proceeds from sale of assets							$ 3,400
Gain on sale of assets							$ 2,000
1 Owned Hotel [Member] \| Subsequent Event [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Proceeds from sale of assets		$ 4,400
1 Additional Hotel Owned [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Number of hotels impaired \| Hotel			1				1
Proceeds from sale of assets							$ 2,800
1 Additional Hotel Owned [Member] \| Combination of Historical and Projected Cash Flows and Other Available Market Information [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Impairment charge							1,000
1 Additional Hotel Owned [Member] \| Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Impairment charge							$ 200
Long-term Debt [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Discount rates							4.20%	3.70%