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Amount of assets pledged to secure a debt instrument.

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Face (par) amount of debt instrument at time of issuance.

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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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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Gross amount of debt extinguished.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Indebtedness, net (Details)				12 Months Ended
Indebtedness, net (Details)	Nov. 01, 2017 USD ($)	Aug. 18, 2017	Jan. 18, 2017 USD ($) hotel loan extension	Dec. 31, 2017 USD ($) hotel extension	Dec. 31, 2016 USD ($)
Debt Instrument [Line Items]
Long-term debt, gross				$ 826,236,000	$ 766,964,000
Book value of collateral				1,145,842,000	1,014,532,000
Deferred loan costs, net				(5,277,000)	(2,348,000)
Indebtedness, net				$ 820,959,000	$ 764,616,000
LIBOR rate				1.564%	0.772%
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] \| Plano Marriott Legacy Town Center [Member]
Debt Instrument [Line Items]
Consideration for disposal	$ 104,000,000
TIF Loan [Member]
Debt Instrument [Line Items]
Interest rate					12.85%
Mortgages [Member] \| Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] \| Plano Marriott Legacy Town Center [Member]
Debt Instrument [Line Items]
Extinguishment of debt	$ 87,400,000
Mortgages [Member] \| Mortgage loan 1 [Member]
Debt Instrument [Line Items]
Collateral (in hotels) \| hotel				1
Interest rate				5.91%
Long-term debt, gross				$ 0	$ 32,879,000
Book value of collateral				$ 0	89,443,000
Mortgages [Member] \| Mortgage loan 2 [Member]
Debt Instrument [Line Items]
Collateral (in hotels) \| hotel				1
Interest rate				5.95%
Long-term debt, gross				$ 0	55,915,000
Book value of collateral				$ 0	84,492,000
Mortgages [Member] \| Mortgage loan 3 [Member]
Debt Instrument [Line Items]
Collateral (in hotels) \| hotel				3
Interest rate				5.95%
Long-term debt, gross				$ 0	245,307,000
Book value of collateral				$ 0	257,465,000
Mortgages [Member] \| Mortgage loan 4 [Member]
Debt Instrument [Line Items]
Collateral (in hotels) \| hotel				1
Long-term debt, gross				$ 0
Book value of collateral				$ 0	59,521,000
Mortgages [Member] \| Mortgage loan 4 [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
Basis spread on variable rate				4.95%
Mortgages [Member] \| Mortgage loan 5 [Member]
Debt Instrument [Line Items]
Collateral (in hotels) \| hotel				1
Long-term debt, gross				$ 80,000,000	80,000,000
Book value of collateral				$ 142,374,000	139,560,000
Term of extension options				1 year
Mortgage Loans on Real Estate, Number of Loans \| loan			3
Mortgages [Member] \| Mortgage loan 5 [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
Basis spread on variable rate				2.30%
Mortgages [Member] \| Mortgage loan 6 [Member]
Debt Instrument [Line Items]
Collateral (in hotels) \| hotel				1
Long-term debt, gross				$ 70,000,000	70,000,000
Book value of collateral				$ 87,334,000	88,923,000
Number of extension options \| extension				3
Term of extension options				1 year
Mortgages [Member] \| Mortgage loan 6 [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
Basis spread on variable rate				2.25%
Mortgages [Member] \| TIF Loan [Member]
Debt Instrument [Line Items]
Collateral (in hotels) \| hotel				1
Interest rate				12.85%
Long-term debt, gross				$ 8,098,000	8,098,000
Book value of collateral				$ 0	0
Mortgages [Member] \| Mortgage loan 7 [Member]
Debt Instrument [Line Items]
Collateral (in hotels) \| hotel				1
Long-term debt, gross				$ 42,000,000	42,000,000
Book value of collateral				$ 40,024,000	63,306,000
Number of extension options \| extension				3
Term of extension options				1 year
Mortgages [Member] \| Mortgage loan 7 [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
Basis spread on variable rate				4.95%
Mortgages [Member] \| Mortgage loan 8 [Member]
Debt Instrument [Line Items]
Collateral (in hotels) \| hotel			4	4
Long-term debt, gross				$ 277,628,000	0
Book value of collateral				$ 353,853,000	0
Number of extension options \| extension			5
Term of extension options				1 year
Debt initial term				2 years
Face amount of debt			$ 365,000,000
Mortgages [Member] \| Mortgage loan 8 [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
Basis spread on variable rate			2.58%	2.58%
Mortgages [Member] \| Mortgage loan 9 [Member]
Debt Instrument [Line Items]
Collateral (in hotels) \| hotel				1
Long-term debt, gross				$ 67,500,000	0
Book value of collateral				$ 143,652,000	0
Number of extension options \| extension				3
Term of extension options				1 year
Mortgages [Member] \| Mortgage loan 9 [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
Basis spread on variable rate				2.75%
Mortgages [Member] \| Mortgage loan 10 [Member]
Debt Instrument [Line Items]
Collateral (in hotels) \| hotel				2
Long-term debt, gross				$ 190,010,000	192,765,000
Book value of collateral				$ 225,904,000	231,822,000
Number of extension options \| extension				2
Term of extension options				1 year
Mortgages [Member] \| Mortgage loan 10 [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
Basis spread on variable rate				2.65%
Mortgages [Member] \| Mortgage loan 11 [Member]
Debt Instrument [Line Items]
Collateral (in hotels) \| hotel				1
Long-term debt, gross				$ 51,000,000	0
Book value of collateral				$ 94,910,000	0
Mortgages [Member] \| Mortgage loan 11 [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
Basis spread on variable rate				2.55%
Mortgages [Member] \| Mortgage loan 12 [Member]
Debt Instrument [Line Items]
Collateral (in hotels) \| hotel				1
Long-term debt, gross				$ 40,000,000	0
Book value of collateral				$ 57,791,000	0
Debt initial term				5 years
Mortgages [Member] \| Mortgage loan 12 [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
Basis spread on variable rate		2.55%		2.55%
Mortgages [Member] \| Three Loans Due April 2017 [Member]
Debt Instrument [Line Items]
Long-term debt, gross			$ 333,700,000
Mortgage Loans on Real Estate, Number of Loans \| loan			3
Line of Credit [Member] \| Letter of Credit [Member]
Debt Instrument [Line Items]
Borrowing capacity				$ 15,000,000
Line of Credit [Member] \| Senior Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Collateral (in hotels) \| hotel				0
Long-term debt, gross				$ 0	0
Book value of collateral				0	$ 0
Borrowing capacity				100,000,000
Possible expansion				$ 250,000,000
Number of extension options \| extension				2
Term of extension options				1 year
Extension fee				0.25%
Line of Credit [Member] \| Senior Revolving Credit Facility [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
Basis spread on variable rate				1.00%
Line of Credit [Member] \| Senior Revolving Credit Facility [Member] \| LIBOR [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate				2.25%
Line of Credit [Member] \| Senior Revolving Credit Facility [Member] \| LIBOR [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate				3.50%
Line of Credit [Member] \| Senior Revolving Credit Facility [Member] \| Base Rate [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate				1.25%
Line of Credit [Member] \| Senior Revolving Credit Facility [Member] \| Base Rate [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate				2.50%
Line of Credit [Member] \| Senior Revolving Credit Facility [Member] \| Federal Funds Rate [Member]
Debt Instrument [Line Items]
Basis spread on variable rate				0.50%