SUBSEQUENT EVENTS - Debt Transactions (Details 2)				12 Months Ended
	Feb. 19, 2016 property	Jan. 15, 2016 USD ($) property	Jan. 02, 2014 USD ($)	Dec. 31, 2015 USD ($) property	Dec. 31, 2014 USD ($)	Oct. 10, 2013 USD ($)
Interest rate swaps | Designated as hedges
Subsequent events
Notional value of derivative			$ 75,000,000	$ 75,000,000	$ 103,002,000
LIBOR | Interest rate swaps
Subsequent events
Derivative fixed rate (as a percent)			2.04%
Senior Unsecured Credit Facility dated October 10, 2013
Subsequent events
Maximum borrowing capacity				300,000,000
Term loan | Senior Unsecured Credit Facility dated October 10, 2013 | LIBOR | Interest rate swaps
Subsequent events
Variable rate basis			LIBOR
Unsecured debt | Senior Unsecured Credit Facility dated October 10, 2013
Subsequent events
Maximum borrowing capacity				$ 300,000,000		$ 300,000,000
Maximum increase in borrowing capacity available through accordion feature option						100,000,000
Unused fees payable, if unused portion of credit facility is equal to or greater than 50% (as a percent)				0.30%
Unused fees payable, if unused portion of credit facility is less than 50% (as a percent)				0.20%
Threshold for determining unused fees payable (as a percent)				50.00%
Number of Real Estate Properties Unencumbered | property				47
Number of unencumbered hotel properties | property				47
Unsecured debt | Senior Unsecured Credit Facility dated October 10, 2013 | Minimum
Subsequent events
Number of hotel properties to remain unencumbered | property				20
Unsecured debt | Revolving credit facility | Senior Unsecured Credit Facility dated October 10, 2013
Subsequent events
Maximum borrowing capacity				$ 225,000,000		225,000,000
Effective interest rate (as a percent)				2.33%
Unsecured debt | Term loan | Senior Unsecured Credit Facility dated October 10, 2013
Subsequent events
Maximum borrowing capacity				$ 75,000,000		$ 75,000,000
Effective interest rate (as a percent)			3.94%	3.94%
Unsecured debt | LIBOR advances | Senior Unsecured Credit Facility dated October 10, 2013 | LIBOR
Subsequent events
Variable rate basis				1, 2, 3, or 6-month LIBOR
Unsecured debt | LIBOR advances | Senior Unsecured Credit Facility dated October 10, 2013 | LIBOR | Minimum
Subsequent events
Interest rate margin on variable rate basis (as a percent)				1.75%
Unsecured debt | LIBOR advances | Senior Unsecured Credit Facility dated October 10, 2013 | LIBOR | Maximum
Subsequent events
Interest rate margin on variable rate basis (as a percent)				2.50%
Unsecured debt | Base rate advances | Senior Unsecured Credit Facility dated October 10, 2013 | LIBOR
Subsequent events
Variable rate basis				1-month LIBOR
Interest rate margin on variable rate basis (as a percent)				1.00%
Unsecured debt | Base rate advances | Senior Unsecured Credit Facility dated October 10, 2013 | Prime rate
Subsequent events
Variable rate basis				prime rate
Unsecured debt | Base rate advances | Senior Unsecured Credit Facility dated October 10, 2013 | Federal funds rate
Subsequent events
Variable rate basis				federal funds rate
Interest rate margin on variable rate basis (as a percent)				0.50%
Unsecured debt | Base rate advances | Senior Unsecured Credit Facility dated October 10, 2013 | Base rate
Subsequent events
Variable rate basis				base rate
Unsecured debt | Base rate advances | Senior Unsecured Credit Facility dated October 10, 2013 | Base rate | Minimum
Subsequent events
Interest rate margin on variable rate basis (as a percent)				0.75%
Unsecured debt | Base rate advances | Senior Unsecured Credit Facility dated October 10, 2013 | Base rate | Maximum
Subsequent events
Interest rate margin on variable rate basis (as a percent)				1.50%
Subsequent events | Unsecured debt | 2016 Unsecured Credit Facility
Subsequent events
Maximum increase in borrowing capacity available through accordion feature option		$ 150,000,000
Multiplying factor on unencumbered assets		60.00%
Percent on net operating income of unencumbered assets		50.00%
Number of hotel properties to remain unencumbered | property	42
Unused fees payable, if unused portion of credit facility is equal to or greater than 50% (as a percent)		0.25%
Unused fees payable, if unused portion of credit facility is less than 50% (as a percent)		0.20%
Threshold for determining unused fees payable (as a percent)		50.00%
Number of Real Estate Properties Unencumbered | property	42
Number of unencumbered hotel properties | property	42
Outstanding principal balance transferred to new credit facility		$ 170,000,000
Subsequent events | Unsecured debt | 2016 Unsecured Credit Facility | Minimum
Subsequent events
Number of hotel properties to remain unencumbered | property		20
Subsequent events | Unsecured debt | Senior Unsecured Credit Facility dated October 10, 2013
Subsequent events
Principal balance paid off with transfer to new credit facility		$ 170,000,000
Subsequent events | Unsecured debt | Revolving credit facility | 2016 Unsecured Credit Facility
Subsequent events
Maximum borrowing capacity		300,000,000
Subsequent events | Unsecured debt | Term loan
Subsequent events
Maximum borrowing capacity		150,000,000
Subsequent events | Unsecured debt | Term loan | 2016 Unsecured Credit Facility
Subsequent events
Maximum borrowing capacity		$ 150,000,000
Reduction from revolving credit advance margin for tem loan margin (as a percent)		0.05%
Subsequent events | Unsecured debt | Term loan | 2016 Unsecured Credit Facility | Interest rate swaps
Subsequent events
Effective interest rate (as a percent)		3.64%
Subsequent events | Unsecured debt | Term loan | 2016 Unsecured Credit Facility | Base rate | Maximum
Subsequent events
Interest rate margin on variable rate basis (as a percent)		1.25%
Subsequent events | Unsecured debt | LIBOR advances | 2016 Unsecured Credit Facility | LIBOR
Subsequent events
Variable rate basis		1, 2, 3, or 6-month LIBOR
Subsequent events | Unsecured debt | LIBOR advances | 2016 Unsecured Credit Facility | LIBOR | Minimum
Subsequent events
Interest rate margin on variable rate basis (as a percent)		1.50%
Subsequent events | Unsecured debt | LIBOR advances | 2016 Unsecured Credit Facility | LIBOR | Maximum
Subsequent events
Interest rate margin on variable rate basis (as a percent)		2.25%
Subsequent events | Unsecured debt | Base rate advances | 2016 Unsecured Credit Facility | LIBOR
Subsequent events
Variable rate basis		1-month LIBOR
Interest rate margin on variable rate basis (as a percent)		1.00%
Subsequent events | Unsecured debt | Base rate advances | 2016 Unsecured Credit Facility | Prime rate
Subsequent events
Variable rate basis		prime rate
Subsequent events | Unsecured debt | Base rate advances | 2016 Unsecured Credit Facility | Federal funds rate
Subsequent events
Variable rate basis		federal funds
Interest rate margin on variable rate basis (as a percent)		0.50%
Subsequent events | Unsecured debt | Base rate advances | 2016 Unsecured Credit Facility | Base rate
Subsequent events
Variable rate basis		base rate
Subsequent events | Unsecured debt | Base rate advances | 2016 Unsecured Credit Facility | Base rate | Minimum
Subsequent events
Interest rate margin on variable rate basis (as a percent)		0.50%
Operating Partnership | Subsequent events | Unsecured debt | 2016 Unsecured Credit Facility
Subsequent events
Maximum borrowing capacity		$ 450,000,000