Organization and Description of Business - Additional Information (Detail)																	9 Months Ended
	Sep. 18, 2018 USD ($)	Aug. 31, 2018 USD ($) $ / shares shares	Jul. 31, 2018 USD ($)	Jul. 27, 2018 USD ($)	Jul. 02, 2018 USD ($)	Mar. 01, 2018 USD ($) Room RenewalPeriod	Feb. 26, 2018	Feb. 12, 2018 USD ($)	Feb. 01, 2018 USD ($)	Nov. 15, 2017 USD ($)	Oct. 17, 2017 USD ($) shares	Oct. 11, 2017 USD ($) shares	Jun. 29, 2017 USD ($)	Jun. 01, 2017 USD ($)	Feb. 07, 2017 USD ($)	Jan. 30, 2017 USD ($) Room ParkingSpaces	Sep. 30, 2018 USD ($) Hotel Room $ / shares shares	Jul. 30, 2018 USD ($)	Dec. 31, 2017 USD ($) $ / shares shares	Dec. 02, 2016 $ / shares
Organization Consolidation and Presentation of Financial Statements [Line Items]
Date of incorporation																	Aug. 20, 2004
Investment in number of hotels | Hotel																	12
Rooms in hotel | Room																	3,156
Date of commencement of business																	Dec. 21, 2004
Number of hotels acquired before commencement of business | Hotel																	6
Mortgage loans																	$ 369,500,475		$ 299,051,772
Proceeds from sale of preferred stock																	1,188,066
Proceeds from sale and issuance of unsecured notes																	$ 25,000,000
Loan rate swapped for fixed interest rate																	5.237%
Common stock, par value | $ / shares																	$ 0.01		$ 0.01	$ 0.01
Preferred stock, shares authorized | shares																	11,000,000		11,000,000
Common Stock [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Stock issued during period | shares																	88,297
LIBOR [Member] | Minimum [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Interest rate cap for loan																	2.50%		2.50%
LIBOR [Member] | Maximum [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Interest rate cap for loan																	3.25%		3.25%
7.0% Senior Unsecured Notes [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Debt instrument redeemed date										Nov. 15, 2017
Debt instrument redeemed, principal amount										$ 25,300,000
Percentage of redemption price equal to principal amount										101.00%
Interest rate										7.00%
7.25% Senior Unsecured Notes due 2021 [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Interest rate								7.25%
Proceeds from sale and issuance of unsecured notes								$ 25,000,000
Proceeds from unsecured notes net of estimated expenses								23,300,000
7.875% Series C Cumulative Redeemable Perpetual Preferred Stock [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Preferred stock, shares sale and issuance | shares											100,000	1,200,000
Preferred stock, dividend rate percentage												7.875%
Proceeds from sale of preferred stock											$ 2,500,000	$ 28,000,000
Sandler O’Neill [Member] | Sales Agency Agreement [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Common stock, par value | $ / shares		$ 0.01
Aggregate gross sale price of common stock		$ 5,000,000
Preferred stock, par value | $ / shares		$ 0.01
Sandler O’Neill [Member] | Sales Agency Agreement [Member] | Common Stock [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Common stock, par value | $ / shares		$ 0.01
Aggregate gross sale price of common stock		$ 5,000,000
Stock issued during period | shares																	88,297
Sandler O’Neill [Member] | Sales Agency Agreement [Member] | 7.875% Series C Cumulative Redeemable Perpetual Preferred Stock [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Preferred stock, dividend rate percentage		7.875%
Preferred stock, shares authorized | shares		400,000
Sandler O’Neill [Member] | Sales Agency Agreement [Member] | 7.875% Series C Cumulative Redeemable Perpetual Preferred Units [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Stock issued during period | shares																	50,541
Aggregate net price of common stock and redeemable preferred stock																	$ 1,900,000
Double Tree by Hilton Jacksonville Riverfront [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Aggregate purchase price					$ 3,500,000
Double Tree by Hilton Jacksonville Riverfront [Member] | Mortgage Loans [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Mortgage loans																	$ 34,907,423		$ 35,294,741
Debt instrument maturity date																	Jul. 11, 2024
Amortization Period																	30 years
Double Tree by Hilton Jacksonville Riverfront [Member] | Wells Fargo Bank, N.A [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Mortgage loans													$ 35,500,000
Debt instrument maturity date													Jul. 11, 2024
Fixed interest rate													4.88%
Amortization Period													30 years
Hilton Wilmington Riverside [Member] | Mortgage Loans [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Additional proceeds on mortgage loan									$ 5,000,000
The Whitehall [Member] | Mortgage Loans [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Mortgage loans																	$ 14,804,000		15,000,000
Debt instrument maturity date																	Feb. 26, 2023
Fixed interest rate																	4.00%
Amortization Period							25 years										25 years
Extended maturity date							Feb. 26, 2023
Floating rate of interest rate																	3.50%
Doubletree By Hilton Raleigh Brownstone - University [Member] | Mortgage Loans [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Mortgage loans																	$ 18,300,000		14,503,925
Debt instrument maturity date																	Jul. 27, 2022
Debt instrument maturity term																	4 years
Extended maturity period																	P1Y
Floating rate of interest rate																	4.00%
Derivative maturity limit																	Aug. 01, 2022
Notional amount																	$ 23,500,000
Debt instrument prepayment lockout period																	12 months
Debt instrument prepayment penalty period																	2 years
Doubletree By Hilton Raleigh Brownstone - University [Member] | Mortgage Loans [Member] | LIBOR [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Interest rate cap for loan																	3.25%
Doubletree By Hilton Raleigh Brownstone - University [Member] | MetLife Commercial Mortgage Originator, LLC [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Mortgage loans				$ 18,300,000
Debt instrument maturity term				4 years
Extended maturity period				1-year
Mortgage loan additional earn-out provision				$ 5,200,000
Derivative maturity limit				Aug. 01, 2022
Notional amount				$ 23,500,000
Debt instrument prepayment lockout period				12 months
Debt instrument prepayment penalty description				The mortgage requires monthly interest-only payments and, following a 12-month lockout, can be prepaid with a penalty during its second year and without penalty thereafter
Doubletree By Hilton Raleigh Brownstone - University [Member] | MetLife Commercial Mortgage Originator, LLC [Member] | LIBOR [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Floating rate of interest rate				4.00%
Interest rate cap for loan				3.25%
Double Tree By Hilton Philadelphia Airport [Member] | Toronto Dominion Bank
Organization Consolidation and Presentation of Financial Statements [Line Items]
Debt instrument maturity date			Jul. 31, 2023
Amortization Period			30 years
Mortgage loans			$ 42,200,000															$ 30,000,000
Swap agreement term			5 years
Loan rate swapped for fixed interest rate			5.237%
Debt instrument, description			Pursuant to the amended loan documents: (i) the principal balance of the loan was increased from approximately $30.0 million to $42.2 million; (ii) the loan’s maturity date was extended to July 31, 2023; (iii) the loan bears a floating interest rate equal to the 1-month LIBOR rate plus 2.27% (the “Loan Rate”); (iv) the loan amortizes on a 30-year schedule with payments of principal and interest beginning immediately; (v) the loan can be prepaid without penalty; and (vi) the loan will no longer be fully guaranteed by the Operating Partnership, but the Operating Partnership has guaranteed certain standard “bad boy” carveouts. Pursuant to the swap agreement: (i) the Loan Rate has been swapped for a fixed interest rate of 5.237%; notional amounts of the swap approximate the declining balance of the loan; and (iii) we are responsible for any potential termination fees associated with early termination of the swap agreement.
Double Tree By Hilton Philadelphia Airport [Member] | LIBOR [Member] | Toronto Dominion Bank
Organization Consolidation and Presentation of Financial Statements [Line Items]
Floating rate of interest rate			2.27%
Double Tree By Hilton Philadelphia Airport [Member] | Mortgage Loans [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Mortgage loans																	$ 42,180,012		$ 30,432,260
Debt instrument maturity date																	Jul. 31, 2023
Amortization Period																	30 years
Floating rate of interest rate																	2.27%
Crowne Plaza Hampton Marina [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Proceeds from sale of assets															$ 5,600,000
Commercial Unit of Hyde Resort & Residences [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Rooms in hotel | Room																400
Commercial unit purchase price																$ 4,800,000
Number of parking space lease agreement entered | ParkingSpaces																400
Proceeds from pre-opening services fee																$ 800,000
Commercial Unit of Planned Hyde Beach House Resort & Residences [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Commercial unit purchase price														$ 5,100,000
Pre-opening services fee receivable														$ 800,000
Hyatt Centric Arlington [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Rooms in hotel | Room						318
Commercial unit purchase price						$ 79,700,000
Mortgage loans								$ 57,000,000
Hyatt Centric Arlington [Member] | Management Agreement with Highgate Hotels L.P. [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Intial term of agreement						3 years
Agreement commencement date						Mar. 01, 2018
Base management fee of gross revenues						2.50%
Incentive management fee equal to increase in gross operating profit percentage						10.00%
Maximum incentive management fee of gross revenues						0.50%
Hyatt Centric Arlington [Member] | Franchise Agreement with Affiliate of Hyatt Hotels Corporation Operating as Hyatt Centric Arlington [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Rental payments per year in base rent under ground lease						$ 50,000
Ground lease percentage rent on gross rooms revenues in excess of thresholds						3.50%
Initial term of ground lease expires year						2025
Number of additional renewal periods extended under ground lease | RenewalPeriod						5
Duration period under ground lease for each renewal periods extended						10 years
Hyatt Centric Arlington [Member] | First Promissory Note (“Note A”) [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Mortgage loans						$ 50,000,000
Debt instrument maturity term						3 years
Extended maturity period						two 1-year
Monthly principal payments						$ 78,650
Hyatt Centric Arlington [Member] | First Promissory Note (“Note A”) [Member] | LIBOR [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Floating rate of interest rate						3.00%
Hyatt Centric Arlington [Member] | Second Promissory Note (“Note B”) [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Mortgage loans						$ 7,000,000
Debt instrument maturity term						1 year
Extended maturity period						two 1-year
Hyatt Centric Arlington [Member] | Second Promissory Note (“Note B”) [Member] | Initial 1-Year Term [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Monthly principal payments						$ 100,000
Hyatt Centric Arlington [Member] | Second Promissory Note (“Note B”) [Member] | First 1-Year Extended Term [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Monthly principal payments						150,000
Hyatt Centric Arlington [Member] | Second Promissory Note (“Note B”) [Member] | Second 1-Year Extended Term [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Monthly principal payments						$ 250,000
Hyatt Centric Arlington [Member] | Second Promissory Note (“Note B”) [Member] | LIBOR [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Floating rate of interest rate						5.00%
Hyatt Centric Arlington [Member] | 7.25% Senior Unsecured Notes due 2021 [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Interest rate						7.25%
Hyatt Centric Arlington [Member] | MetLife Real Estate Lending LLC [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Amortization Period	30 years
Interest rate	5.25%
Mortgage loans	$ 50,000,000
Intial term of agreement	10 years
Debt instrument prepayment lockout period	5 years
Debt instrument prepayment penalty description	prepaid with penalty in years 6-10 and without penalty during the final 4 months of the term.
Debt instrument prepayment without penalty period during final term	4 months
Hyatt Centric Arlington [Member] | MetLife Real Estate Lending LLC [Member] | Minimum [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Debt instrument prepayment penalty period	6 years
Hyatt Centric Arlington [Member] | MetLife Real Estate Lending LLC [Member] | Maximum [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Debt instrument prepayment penalty period	10 years
Operating Partnership [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Percentage of operating partnership owned																	88.90%