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[Line Items] for Significant Accounting Policies [Table]

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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The charge against earnings in the period to reduce the carrying amount of real property to fair value.

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Balance held at close of period in number of shares.

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Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.

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Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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Significant Accounting Policies (Details) - USD ($) shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016	Dec. 31, 2015
Significant Accounting Policies [Line Items]
Impairment charges	$ 1,008,000	$ 0	$ 1,008,000	$ 0
Increase in net cash provided by operating activities			46,624,000	46,917,000
Decrease in net cash used in investing activities			274,148,000	(109,606,000)
Restricted cash	$ 31,609,000	$ 41,098,000	$ 31,609,000	41,098,000	$ 37,855,000	$ 33,135,000
Accounting Standards Update 2016-18 [Member]
Significant Accounting Policies [Line Items]
Increase in net cash provided by operating activities				13,100,000
Decrease in net cash used in investing activities				$ 5,200,000
Restricted cash					$ 37,900,000	$ 33,100,000
Ashford Inc. [Member]
Significant Accounting Policies [Line Items]
Investment owned (in shares)	195		195		195
Equity method investment, ownership percentage	9.60%		9.60%		9.60%
Investment in Ashford Inc., at fair value	$ 11,810,000		$ 11,810,000		$ 8,407,000
Minimum \| Restricted Cash [Member]
Significant Accounting Policies [Line Items]
Replacement reserve escrow as percentage of property revenue			4.00%
Maximum \| Restricted Cash [Member]
Significant Accounting Policies [Line Items]
Replacement reserve escrow as percentage of property revenue			5.00%